Documentation: start documenting our services

Change-Id: I4d687d13e8d47e3e3e6f319b9117d3c4f31caa78
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35805
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>

Documentation/community/services.md

@@ -0,0 +1,36 @@
+# Accounts on coreboot.org
+
+There are a number of places where you can benefit from creaating an account
+in our community. Since there is no single sign-on system in place (at this
+time), they come with their own setup routines.
+
+## Gerrit code review
+We exchange and review patches to the code using our [Gerrit code review
+system](https://review.coreboot.org).
+
+It allows logging in with a Google or GitHub account using OAuth2 as well
+as with any OpenID provider that you may already use.
+
+On the [settings screen](https://review.coreboot.org/settings) you can register
+all your email addresses you intend to use in the context of coreboot
+development so that commits with your email address in them are associated with
+you properly.
+
+### https push access
+When using the https URLs to git repositories, you can push with the "HTTP
+Credentials" you can have Gerrit generate for you on that page. By default,
+git uses `$HOME/.netrc` for http authentication data, so add a line there
+stating:
+
+    machine review.coreboot.org login $your-user-name password $your-password
+
+### Gerrit user avatar
+To setup an avatar to show in Gerrit, clone the avatars repository at
+https://review.coreboot.org/gerrit-avatars.git and add a file named
+$your-user-ID.jpg (the user ID is a number shown on the [settings screen](https://review.coreboot.org/settings)).
+The image must be provided in JPEG format, must be square and have at most 50000
+bytes.
+
+After you push for review, the system will automatically verify your change
+and, if adhering to these constraints, approve it. You can then immediately
+submit it.

Documentation/index.md

@@ -166,6 +166,7 @@ Contents:
 * [Project Ideas](contributing/project_ideas.md)
 * [Code of Conduct](community/code_of_conduct.md)
 * [Community forums](community/forums.md)
+* [Project services](community/services.md)
 * [coreboot at conferences](community/conferences.md)
 * [Payloads](payloads.md)
 * [Distributions](distributions.md)