add possibility to add options to breadcrumb link

[Raelf]

Hello, I added an option to give a title to the breadcrumb link. You can add the title with this call:

add_crumb "Home", '/', link_html_options: {title: "my link title"}

[andrew]

Looks good, can you add some documentation to the readme and I'll merge it in.

Thanks!

[Raelf]

I added some information to the exemple block.

[andrew]

Awesome, thanks!

[andrew]

Can you update your branch to match the current master so I can merge it in.

[Raelf]

Oh sorry. I didn't check that after update the readme. I also deleted a code line in the last commit. It was never called.

[andrew]

Great, thanks!