README edited, yarn version updated

[Nayananga]

Hi everyone I found that yarn version is again outdated so I updated yarn using yarn policies set-version in both antora and Hugo. Then I found ReadMe missing installing Hugo for a new site builder so I updated it and add few minor changes.

[zregvart]

Thanks for this. Can you try to make your changes on top of the master master there's a merge commit in here that I don't think was merged/rebased correctly: the static/.htaccess file should not be removed it should be there to preserve backward compatibility with the links we have published for CVEs in the past.

[zregvart]

@Nayananga one tip I have for you is when you do a git pull as you're developing on the master branch in your fork is to do a git pull --rebase so to base your own changes on top of the changes done upstream.

What I usually do to help with workflow is to make the master branch track the upstream (GitHub or Apache repository) and to make my changes on a different branch that I push to my fork repository on GitHub to create the PR.

[Nayananga]

Thank you Mr.Zoran for pointing out. please check now. problem was .htaccess file has accidentally ignored by me as per PhpStorm suggested. So I had to reset my fork into 3b0c20ea4fda787c80a9e3a9c30b35ac43258597 using --keep flag to protect my changes while resting then force pushed my local to remote origin master because normal push says it is already updated.