Fix code in release notes

[angela97lin]

Fixing all code blocks / inserts in our release notes to work properly (currently only italicized).

Updated docs here: https://evalml.alteryx.com/en/ange_fix_release_notes/release_notes.html

Note: In the future, we should use `` to indicate code blocks, rather than ` which is for italics.

[codecov]

Codecov Report

Merging #1243 into main will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main    #1243   +/-   ##
=======================================
  Coverage   99.93%   99.93%           
=======================================
  Files         207      207           
  Lines       12898    12898           
=======================================
  Hits        12889    12889           
  Misses          9        9           

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[bchen1116]

LGTM

[jeremyliweishih]

seems good!

[freddyaboulton]

Thank you for fixing this @angela97lin ! This looks great. The Stacked estimators don't look like code blocks right now in the docs you linked - I don't know if that's intended.

[angela97lin]

@freddyaboulton Ah I made that change pretty recently so the docs probably weren't updated / fully built. It's there now! 😁 (https://evalml.alteryx.com/en/ange_fix_release_notes/release_notes.html)

[dsherry]

Thank you @angela97lin ! Yep let's all try to remember to check the release notes for this before releasing and make sure they look good. I didn't do that. It is listed in the pre-release checklist. I bet we could write CI for this someday too. 👍