How do I get an explanation of the source tree menu options?

Question

When I right click a branch  X (say)  in source tree I get menu options such as

"Update to X"

"Merge X into current branch"

"Rebase current changes onto X"

"Diff against current"

"Close X"

"Create Pull Request"

Where can I find help on each of these menu options?  It seems to me that I need to learn what each verb "Update, Merge, Rebase, Diff" means.  Is there an easier way?  I am using Mercurial

Johannes Kilian_pi36cl · Answer

Hmmm ... these verbs are describing mostly the most elementary concepts of a SCM. I really don't know neither anything about mercurial nor a good glossary of terms ...

A very basic intro into SCM (git): http://tom.preston-werner.com/2009/05/19/the-git-parable.html (hope this gives an intro into the concepts of SCM which could be understood by absolute beginners ... As I'm a more advanced user almost everything there is clear for me ...)

You might also find hints here: http://stackoverflow.com/questions/7076164/terminology-used-by-git

But as I said: I'm a git-boy, so no links for mercurial ... ;-/

Kirsten Greed · Answer

Thanks Johannes, I have worked through Mercurial tutorials, but as a newby was hoping for easy reminders.  Even a link to a glossary of terms would help.
I did find  https://blog.sourcetreeapp.com/2012/08/21/merge-or-rebase/

Johannes Kilian_pi36cl · Answer

Oppps - misread the question. - thanks for the hint. Generally said: these are basic terms of almost any modern sourcecode management system (SCM). You should try to broaden your knowledge of your SCM ...