Add custom template parameter

[sindrehan]

This PR introduces another parameter that allows the user to pass custom templates.

Fixes #37

I've also bumped the minor version in this PR, not sure if this is the way you usually do it, or if you prefer to do it directly in the main branch?

[RobertoPrevato]

Hi @sindrehan,
This is wonderful, thank you! It looks perfect and I can release it today. I also appreciate that you added the entry to the CHANGELOG.
I have limited time during the week for open-source, I'll probably check your other PR tomorrow.

It's fine how you bumped the version. Usually I don't do it following the real semantic versioning specification because I increase patch number also when adding new features, not only when fixing bugs. 😇