Merge pull request #322 from k0sproject/dependabot/pip/docs/markdown-3.5.1

Bump markdown from 3.5 to 3.5.1 in /docs

Author: makhov

docs/requirements.txt

@@ -5,7 +5,7 @@ colorama==0.4.6
 ghp-import==2.1.0
 idna==3.6
 Jinja2==3.1.2
-Markdown==3.5
+Markdown==3.5.1
 MarkupSafe==2.1.3
 mdx-truly-sane-lists==1.3
 mergedeep==1.3.4