Docusaurus alpha 62

[slorber]

You should have a lockfile where we can clearly see you use alpha 62

You had linking errors:

The homePageId should be migrated to slug, but is not a blocking error for now, just a deprecation warning

The sidebars.json will not be required in alpha 63

[MateuszDabrowski]

Ahoj,
Thank you slorber! I checked the pull request and:

1. You are right, one link was wrong, the .mdx extension shouldn't be used, but the rest of the relative path is needed, as links are pointing to a specific header in different doc page
2. Today I once again deleted node modules folder and package-lock and reinstalled with alpha-62 in the package and was indeed able to open sites of the blog and saw the information on the error related to the link. This was not happening yesterday with the same setup. Not sure whether there was some non-numbered change or it was just a problem with the machine yesterday, but glad it is working again.