pidgin/pidgin

Add a link on how to create an application password in Jetbrains Hub

Testing Done:
Built the docs and verified the link worked.

Reviewed at https://reviews.imfreedom.org/r/779/
REVIEWBOARD_URL = "https://reviews.imfreedom.org/"
REPOSITORY = "pidgin/pidgin"
REPOSITORY_TYPE = "mercurial"
BRANCH = "default"
LAND_DEST_BRANCH = "default"
LAND_PUSH = False