Replacing indented code blocks with fenced code blocks

content/markdown/introduction-to-markdown.md

@@ -12,11 +12,11 @@ You can also use Markdown in many parts of Codeberg (Issues, Pull Requests, etc.
 ## Text section
 
 To write a Markdown file, simply create a new file, and edit it with a text editor of your choice.
-Markdown doesn't consider single line breaks as the start of a new paragraph. 
+Markdown doesn't consider single line breaks as the start of a new paragraph.
 You can write all your text into one long line or introduce a new line every once in a while.
 It is common practice to introduce a new line at around 80 characters to enable users to easily read the plain un-rendered version of the Markdown file.
 However, it's recommended to make a line break in Markdown when it makes sense, e.g. at the end of a sentence.
-It makes diffs easier to understand, as the context of the complete sentence is preserved. 
+It makes diffs easier to understand, as the context of the complete sentence is preserved.
 
 If you want to start a new paragraph, use two or more empty new lines to separate the text.
 Beware that when rendering with Forgejo, line breaks are rendered differently in repos and comment fields.
@@ -82,13 +82,13 @@ This is also _italic text_.
 Text may contain references to emoticons which are rendered as a small image, similar to an emoji.
 You can render these by typing the name of the emoticon you want to use, surrounded by colons (`:`), like this `:codeberg:`.
 
-Some examples are `:codeberg:` which is rendered as <img src="https://codeberg.org/assets/img/emoji/codeberg.png" class="codeberg-design" style="border-style:none;width:1em;height:1em" alt="The Codeberg mountain" /> and `:gitea:` which is rendered as <img src="https://codeberg.org/assets/img/emoji/gitea.png" class="codeberg-design" style="border-style:none;height:1em;width=1em" alt="The Gitea tea cup" />. 
+Some examples are `:codeberg:` which is rendered as <img src="https://codeberg.org/assets/img/emoji/codeberg.png" class="codeberg-design" style="border-style:none;width:1em;height:1em" alt="The Codeberg mountain" /> and `:gitea:` which is rendered as <img src="https://codeberg.org/assets/img/emoji/gitea.png" class="codeberg-design" style="border-style:none;height:1em;width=1em" alt="The Gitea tea cup" />.
 
 ### Referencing issues and pull requests
 
 Issues and pull requests in Codeberg/Forgejo can be referenced in the comments of an issue or a pull request by using a hash `#` followed by the number of the issue or pull request.
 The renderer will then include a link to the referenced issue into the comment.
-After that, a link to the comment containing the reference will be added to the issues referenced in this way. 
+After that, a link to the comment containing the reference will be added to the issues referenced in this way.
 
 ### Checkboxes
 
@@ -103,12 +103,14 @@ Use the render hint `mermaid` on the preformatted section containing the code of
 
 E.g.
 
-    ```mermaid
-        graph TD;
-        A(stuff)-->B[one];
-        A-->C[two];
-        A-->D[three];
-    ```
+~~~markdown
+```mermaid
+    graph TD;
+    A(stuff)-->B[one];
+    A-->C[two];
+    A-->D[three];
+```
+~~~
 
 is rendered to:
 

content/markdown/preformatted-text.md

@@ -13,19 +13,17 @@ There are two ways to use monospace preformatted text within your Markdown docum
 
 ## Using indentation
 
-You can preformat a section of text or code by indenting the code with 4 or more spaces, or a tab:
-
-    this
-    is
-    displayed
-    as
-    preformatted
+You can preformat a section of text or code by indenting the code with 4 or more spaces, or a tab.
 
 Using indentation, it's not possible to add a rendering hint. It's also not possible to preformat text within a line using this syntax.
 
+Indentation-based preformatting sometimes causes false positives where text is
+preformatted that isn't supposed to. For this reason, it is disabled in some
+Markdown renderers, including in Codeberg Documentation.
+
 ## Using backticks
 
-You can preformat a section of text by starting a section of text with one or more backtick characters.
+A better way of preformatting a section of text is by starting a section of text with one or more backtick characters.
 
 Here, we use 3 backtick characters on its own line, then our text, then another line containing 3 more backticks.
 

content/security/2fa.md

@@ -103,7 +103,9 @@ Password for 'https://username@codeberg.org': access-token
 
 If you want to permanently save your generated access token you can use the following command to store it globally on your computer:
 
-    git config --global credential.helper cache
+```
+git config --global credential.helper cache
+```
 
 ## Troubleshooting
 
@@ -114,7 +116,7 @@ Codeberg's instance of Forgejo is using an [OTP library](https://github.com/pque
     v         v         v
     | <-----> | <-----> | <----->
          ^         ^         ^
-     Previous   Current     Next  
+     Previous   Current     Next
 ```
 
 Codeberg's server is always at the **Current** period. If a token of the **Previous** period is submitted, which was generated between 00:00-00:30, it will be accepted, as long as that token was submitted between 00:30-01:00. So at a minimum you always got 30 seconds to submit the token, before it becomes "invalid" and Codeberg always accept two codes (**Previous**, **Current**)