[Perl/perl5] b9be37: [doc] `perldelta`: Minor template fixes

[Elvin Aslanov via perl5-changes]

  Branch: refs/heads/blead
  Home:   https://github.com/Perl/perl5
  Commit: b9be37a1367029cb4cf6217fc079a5d63c3ac8ce
      
https://github.com/Perl/perl5/commit/b9be37a1367029cb4cf6217fc079a5d63c3ac8ce
  Author: rwp0 <rwp.prim...@gmail.com>
  Date:   2024-01-31 (Wed, 31 Jan 2024)

  Changed paths:
    M Porting/perldelta_template.pod
    M pod/perldelta.pod

  Log Message:
  -----------
  [doc] `perldelta`: Minor template fixes

- http -> https links
- Linking modules and sections
- Apply formatting