Adding catalog numbers to a series

[bahoss]

Fixes #1341

[mystamps-bot]

	1 Message
📖	@bahoss thank you for the PR! All quality checks have been passed! Next step is to wait when @php-coder will review this code

Generated by 🚫 Danger

[php-coder]

A few minor comments.

[php-coder]

This means that you have to rebase your branch on top of master.

1. sync master with php-coder/master

$ git checkout master
$ git fetch upstream
$ git merge upstream/master
$ git push

2. do rebase

$ git rebase master adding-catalog-numbers-to-a-series
$ git push -f

If you encounter any errors, post them here.

[php-coder]

Unfortunately, you forgot to remove fragments after a conflict. Please, edit this file and just change v0.4.3.3 to v0.4.3.4

[php-coder]

As you and another line, this comment should be updated to ignore 15 lines.

[php-coder]

I haven't look on it deeply yet but the tests have been passed, I don't see anything that should be fixed. The markup will be modified anyway later. So, it's LGTM!

Thank you!

[php-coder]

@bahoss Great work! Thank you for your patience! I've added your contribution to https://github.com/php-coder/mystamps/wiki/team-members and I can congratulate you with 5 merged PRs!