Markdown to html error

[ffiesta]

Describe your issue

I won't knows if it can be considered an error but i think it is an issue:

Problem 1: Collapsible section

We add +++ to show plus signal, ... but wikidows instead show plus signal convert it to html code despite the code being in triple quotes.

MD code

Image from wikidocs

Problem 2: Using ASCII code in code fields

I tried to use ASCII code ⚠ to identify a warning sign ( ⚠ ), in first save it's ok. After open page to edit wikidocs automaticaly show warning sign despite the code being in triple quotes.

1. add line code

\`\`\`php

if (file_exists('error_log')) {echo " ⚠" ;}

\`\`\`   

2. Save Verify it's OK
   

3. Edit Verify wikidocs automatic convert to warning sign

4. To grant i won't lost ASCII code i add new line with back slash to escape strings

Device and settings

Multiple browsers windows 10

Steps to reproduce

1. add my code to wikidocs if (file_exists('error_log')) {echo " ⚠" ;}
2. save
3. open to edit
4. Verify the problem (the ⚠ it's converted.

Screenshots (optional)

No response

Extra fields

• [ ] I'd like to work on this issue