Docs: Fix broken links in the README
Docs: Fix broken links in the README

I believe that problem was introduced by 717193e570e478fdbbedfcf9aeae2ec0317ec765, that adding numbering to the headers.

[ci skip] [merge me]
ifeelgoods/paper_trail,airblade/paper_trail,jnstq/paper_trail,airblade/paper_trail,jnstq/paper_trail,devonestes/paper_trail,ifeelgoods/paper_trail