Add missing language tags to code blocks

[nmoskaleva]

Unlabeled code blocks were renderered with doble wrapping.
Example:

[netlify]

✅ Deploy Preview for criipto-docs ready!

Name	Link
🔨 Latest commit	62ad27d
🔍 Latest deploy log	https://app.netlify.com/projects/criipto-docs/deploys/694a57aa36119e0008434c3a
😎 Deploy Preview	https://deploy-preview-263--criipto-docs.netlify.app
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[fkj]

Looks like this covers all cases. I scrolled through all the pages and didn't see the problem anywhere in the deploy preview.

I wonder if we can somehow make the tooling warn us about this? I.e. detect the pattern ```\n.

[nmoskaleva]

@fkj Good idea, a warning definitely would be nice.

Adding something like

    "*.{md,mdx}": [
      "awk 'BEGIN {in_block=0} /^```/ { if (!in_block && /^```$/) exit 1; in_block = !in_block }'",
      "prettier --write"
    ],

to "lint-staged" seems to work.
(in_block because otherwise the closing ``` will cause an error).

Is this what you had in mind? Or should we use some library instead?

Pardon the "exploratory" approach, I wasn't sure how this is usually done 😊

[fkj]

@fkj Good idea, a warning definitely would be nice.

Adding something like

    "*.{md,mdx}": [
      "awk 'BEGIN {in_block=0} /^```/ { if (!in_block && /^```$/) exit 1; in_block = !in_block }'",
      "prettier --write"
    ],

to "lint-staged" seems to work. (in_block because otherwise the closing ``` will cause an error).

Is this what you had in mind? Or should we use some library instead?

Pardon the "exploratory" approach, I wasn't sure how this is usually done 😊

@nmoskaleva Yeah that looks good! What does the error message look like for that? Maybe you could do a PR adding it and a intentionally "wrong" commit to show it off.

I don't know if there are any libraries that make it easier, but I think it's fine to use coreutils (i.e. awk) since they should be installed on essentially any platform.

[nmoskaleva]

#264, but it doesn't let the "wrong" file be committed.