Suggestions for documentation improvements

First, thank you for a very nice tool! It's useful, however it's not easy to make it working, it took me a lot of time last year. Based on my experience, I suggest the following enhancements to the installation instructions:
- org-capture Template: Mentioning the variable to modify (org-capture-templates) and adding a link to Org documentation explaining the entry would be convenient.
- Bookmarklets: Not everyone knows what it is, so adding a few explanation words or a link into parentheses would save some web search.
- Firefox: Adding a bookmarklet to Firefox may be non-trivial and confusing for someone who isn't familiar with that. It would be very useful to provide accurate instructions or a link to them.
- Add protocol handler: How to add the handler when one uses neither KDE nor GNOME?