code highlighter: avoid unstyled blocks in docs #32

The new highlighter does not work to well if no syntax is specified
for the code block / code fence / indention.
See https://github.com/gohugoio/hugo/pull/8917

exampleSite/content/basics/installation/_index.en.md

@@ -9,7 +9,7 @@ The following steps are here to help you initialize your new website. If you don
 
 Hugo provides a `new` command to create a new website.
 
-```
+```shell
 hugo new site <new_project>
 ```
 
@@ -38,7 +38,7 @@ home = [ "HTML", "RSS", "JSON"]
 
 Chapters are pages that contain other child pages. It has a special layout style and usually just contains a _chapter name_, the _title_ and a _brief abstract_ of the section.
 
-```
+```markdown
 ### Chapter 1
 
 # Basics
@@ -52,7 +52,7 @@ renders as
 
 **Hugo-theme-relearn** provides archetypes to create skeletons for your website. Begin by creating your first chapter page with the following command
 
-```
+```shell
 hugo new --kind chapter basics/_index.md
 ```
 
@@ -64,7 +64,7 @@ By default all chapters and pages are created as a draft. If you want to render
 
 Then, create content pages inside the previously created chapter. Here are two ways to create content in the chapter:
 
-```
+```shell
 hugo new basics/first-content.md
 hugo new basics/second-content/_index.md
 ```
@@ -75,7 +75,7 @@ Feel free to edit thoses files by adding some sample content and replacing the `
 
 Launch by using the following command:
 
-```
+```shell
 hugo serve
 ```
 
@@ -91,7 +91,7 @@ You should notice three things:
 
 When your site is ready to deploy, run the following command:
 
-```
+```shell
 hugo
 ```
 

exampleSite/content/cont/archetypes.en.md

@@ -11,13 +11,13 @@ It is pre-configured skeleton pages with default front matter. Please refer to t
 
 To create a Chapter page, run the following commands
 
-```
+```shell
 hugo new --kind chapter <name>/_index.md
 ```
 
 It will create a page with predefined Front-Matter:
 
-```markdown
+```toml
 +++
 title = "{{ replace .Name "-" " " | title }}"
 date = {{ .Date }}
@@ -35,18 +35,21 @@ Lorem Ipsum.
 
 ## Default
 
-To create a default page, run either one of the following commands
+To create a default page, run either one of the following commands either
 
-```
-# Either
+```shell
 hugo new <chapter>/<name>/_index.md
-# Or
+```
+
+or
+
+```shell
 hugo new <chapter>/<name>.md
 ```
 
 It will create a page with predefined Front-Matter:
 
-```markdown
+```toml
 +++
 title = "{{ replace .Name "-" " " | title }}"
 date =  {{ .Date }}

exampleSite/content/cont/icons.en.md

@@ -13,7 +13,7 @@ Once on the Font Awesome page for a specific icon, for example the page for the
 
 The HTML to include the heart icon is:
 
-```
+```html
 <i class="fas fa-heart"></i>
 ```
 
@@ -21,7 +21,7 @@ The HTML to include the heart icon is:
 
 Paste the `<i>` HTML into markup and Font Awesome will load the relevant icon.
 
-```
+```html
 Built with <i class="fas fa-heart"></i> by Relearn and Hugo
 ```
 

exampleSite/content/cont/markdown.en.md

@@ -403,9 +403,11 @@ HTML:
 
 Use "fences"  ```` ``` ```` to block in multiple lines of code.
 
-```markdown
+````plaintext
+```
 Sample text here...
 ```
+````
 
 HTML:
 
@@ -423,7 +425,7 @@ See [Code Highlighting]({{% relref "syntaxhighlight.md" %}}) for additional docu
 
 For example, to apply syntax highlighting to JavaScript code:
 
-```plaintext
+````plaintext
 ```js
 grunt.initConfig({
   assemble: {
@@ -444,7 +446,7 @@ For example, to apply syntax highlighting to JavaScript code:
   }
 };
 ```
-```
+````
 
 Renders to:
 

exampleSite/content/cont/pages/_index.en.md

@@ -81,7 +81,7 @@ The following steps are here to help you initialize your new website. If you don
 
 Hugo provides a `new` command to create a new website.
 
-```
+```shell
 hugo new site <new_project>
 ```
 

exampleSite/content/shortcodes/INCLUDE_ME.md

@@ -7,7 +7,7 @@ You can add:
 - other shortcodes besides `expand`
 - etc.
 
-```
+```plaintext
 ...and even source code
 ```
 

exampleSite/content/shortcodes/button.en.md

@@ -5,7 +5,7 @@ description : "Nice buttons on your page."
 
 A button is a just a clickable button with optional icon.
 
-```
+```go
 {{%/* button href="https://gohugo.io/" */%}}Get Hugo{{%/* /button */%}}
 {{%/* button href="https://gohugo.io/" icon="fas fa-download" */%}}Get Hugo with icon{{%/* /button */%}}
 {{%/* button href="https://gohugo.io/" icon="fas fa-download" icon-position="right" */%}}Get Hugo with icon right{{%/* /button */%}}

exampleSite/content/shortcodes/expand.en.md

@@ -7,7 +7,7 @@ The Expand shortcode displays an expandable/collapsible section of text on your
 
 ## Usage
 
-````
+````go
 {{%/* expand "Does this relearn theme rock?" { "true" | "false" } */%}}
 Yes!
 {{%/* /expand */%}}
@@ -25,7 +25,7 @@ Yes, you did it!
 {{% /expand %}}
 
 {{% expand "Show markup" "true" %}}
-````
+````go
 {{%/* expand */%}}
 Yes, you did it!
 {{%/* /expand */%}}
@@ -39,7 +39,7 @@ No need to press you!
 {{% /expand %}}
 
 {{% expand "Show markup" "true" %}}
-````
+````go
 {{%/* expand "Expand me..." "true" */%}}
 No need to press you!
 {{%/* /expand */%}}
@@ -60,7 +60,7 @@ You can add:
 - other shortcodes besides `expand`
 - etc.
 
-```
+```plaintext
 ...and even source code
 ```
 
@@ -68,7 +68,7 @@ You can add:
 {{% /expand %}}
 
 {{% expand "Show markup" %}}
-````
+````go
 {{%/* expand "Show me endless possibilities" */%}}
 Some expandable text.
 
@@ -81,7 +81,7 @@ You can add:
 - other shortcodes besides `expand`
 - etc.
 
-```
+```plaintext
 ...and even source code
 ```
 

exampleSite/content/shortcodes/include.en.md

@@ -7,7 +7,7 @@ The include shortcode includes other files from your project inside of the curre
 
 ## Usage
 
-````
+````go
 {{%/* include "<file>" */%}}
 ````
 
@@ -18,7 +18,7 @@ The include shortcode includes other files from your project inside of the curre
 {{% include "shortcodes/INCLUDE_ME.md" %}}
 
 {{% expand "Show markup" %}}
-````
+````go
 {{%/* include "shortcodes/INCLUDE_ME.md" */%}}
 ````
 {{% /expand %}}

exampleSite/content/shortcodes/mermaid.en.md

@@ -10,7 +10,7 @@ description : "Generation of diagram and flowchart from text in a similar manner
 
 Just insert your mermaid code in the `mermaid` shortcode like this:
 
-````
+````go
 {{</* mermaid [ align=(left|right|center|justify) ] */>}}
 classDiagram
     Person *-- Dog
@@ -43,7 +43,7 @@ graph LR;
 {{< /mermaid >}}
 
 {{% expand "Show markup" "true" %}}
-````
+````go
 {{</* mermaid align="left" */>}}
 graph LR;
     A[Hard edge] -->|Link text| B(Round edge)
@@ -71,7 +71,7 @@ sequenceDiagram
 {{< /mermaid >}}
 
 {{% expand "Show markup" "true" %}}
-````
+````go
 {{</* mermaid */>}}
 sequenceDiagram
     participant Alice
@@ -109,7 +109,7 @@ gantt
 {{< /mermaid >}}
 
 {{% expand "Show markup" "true" %}}
-````
+````go
 {{</* mermaid */>}}
 gantt
         dateFormat  YYYY-MM-DD
@@ -150,7 +150,7 @@ classDiagram
 {{< /mermaid >}}
 
 {{% expand "Show markup" "true" %}}
-````
+````go
 {{</* mermaid */>}}
 classDiagram
     Class01 <|-- AveryLongClass : Cool
@@ -184,7 +184,7 @@ stateDiagram-v2
 {{< /mermaid >}}
 
 {{% expand "Show markup" "true" %}}
-````
+````go
 {{</* mermaid */>}}
 stateDiagram-v2
     open: Open Door

exampleSite/content/shortcodes/notice.en.md

@@ -7,7 +7,7 @@ The notice shortcode shows four types of disclaimers to help you structure your
 
 ## Usage
 
-````
+````go
 {{%/* notice [ note | info | tip | warning ] */%}}
 Some markup
 {{%/* /notice */%}}
@@ -29,7 +29,7 @@ You can add:
 - other shortcodes besides `notice`
 - etc.
 
-```
+```plaintext
 ...and even source code
 ```
 
@@ -37,7 +37,7 @@ You can add:
 {{% /notice %}}
 
 {{% expand "Show markup" %}}
-````
+````go
 {{%/* notice note */%}}
 A **notice** disclaimer
 
@@ -50,7 +50,7 @@ You can add:
 - other shortcodes besides `notice`
 - etc.
 
-```
+```plaintext
 ...and even source code
 ```
 
@@ -73,7 +73,7 @@ You can add:
 - other shortcodes besides `notice`
 - etc.
 
-```
+```plaintext
 ...and even source code
 ```
 
@@ -81,7 +81,7 @@ You can add:
 {{% /notice %}}
 
 {{% expand "Show markup" %}}
-````
+````go
 {{%/* notice info */%}}
 An **information** disclaimer
 
@@ -94,7 +94,7 @@ You can add:
 - other shortcodes besides `notice`
 - etc.
 
-```
+```plaintext
 ...and even source code
 ```
 
@@ -117,7 +117,7 @@ You can add:
 - other shortcodes besides `notice`
 - etc.
 
-```
+```plaintext
 ...and even source code
 ```
 
@@ -125,7 +125,7 @@ You can add:
 {{% /notice %}}
 
 {{% expand "Show markup" %}}
-````
+````go
 {{%/* notice tip */%}}
 A **tip** disclaimer
 
@@ -138,7 +138,7 @@ You can add:
 - other shortcodes besides `notice`
 - etc.
 
-```
+```plaintext
 ...and even source code
 ```
 
@@ -161,7 +161,7 @@ You can add:
 - other shortcodes besides `notice`
 - etc.
 
-```
+```plaintext
 ...and even source code
 ```
 
@@ -169,7 +169,7 @@ You can add:
 {{% /notice %}}
 
 {{% expand "Show markup" %}}
-````
+````go
 {{%/* notice warning */%}}
 A **warning** disclaimer
 
@@ -182,7 +182,7 @@ You can add:
 - other shortcodes besides `notice`
 - etc.
 
-```
+```plaintext
 ...and even source code
 ```
 

exampleSite/content/shortcodes/siteparam.en.md

@@ -14,7 +14,7 @@ For instance, in this current site, the `editURL` variable is used in `config.to
 
 Use the `siteparam` shortcode to display its value.
 
-```
+```go
 `editURL` Value : {{%/* siteparam "editURL" */%}}
 ```