Document what branch to edit when contributing

[waldyrious]

I came here to propose a change from Ctrl+, to Ctrl+, or Ctrl + , in installation.md, because the comma is easy to miss next to the plus sign, but I wasn't able to figure out what branch one is supposed to edit from the instructions in the README. Both master and gh-pages seem to have been edited recently, so it isn't clear which one should be edited.

In any case, it's always nicer to be explicit :)

[pfitzseb]

Should be better now :)

[waldyrious]

Thanks for the quick reaction! For reference, the relevant commit is 278e93c.

[waldyrious]

Out of curiosity, what is the gh-pages branch for? Is it populated by Documenter.jl?

[pfitzseb]

Exactly. Have a look at this if you wanna know more about it.

[waldyrious]

Thanks :)