[docs] Update markdown parser to remove backticks from description

[aefox]

• I have followed (at least) the PR section of the contributing guide.

On https://mui.com/customization/theme-components/ the page description element (which is <p class="description">) contains backticks which are rendered incorrectly (at least compared to how the backticks work for markdown).

Preview:

Looking into understanding why that happens I found out that the description is rendered in the head of the page. Looking more into it I found out that the title is rendered the same, but the title already was trimming the backtics. So I added trimming of the backtics for the description as well.

While this makes sense to me, obviously I cannot grasp the entire set of implications. Easiest thing to do for now, without introducing this change, would be to remove the backticks from description in the mentioned file.

Deploy preview: https://deploy-preview-30495--material-ui.netlify.app/customization/theme-components/

[mui-pr-bot]

No bundle size changes

Generated by 🚫 dangerJS against e4c7a0b

[siriwatknp]

@aefox I still see the backtick (`) that wraps "components".

[aefox]

@siriwatknp that is correct, I did not remove that from the actual mentioned md file in the initial change set. The reason why I didn't do that was because I spent some extra time trying to find a way to still achieve the desired initial intention (and that is to emphasise the components word in the page). I was able to do that by replacing the `` with html's <code> and it worked, but yeah, I got a different series of issues which I tried figuring out if there is a way of fixing them by reusing something existing in the codebase.

Since I couldn't find any cool way of achieving both needs (having a proper text sentence in the header and good looking UI emphasised render) I have removed the backticks now.

[siriwatknp]

👍 Thank you so much for the fix!