Documentation: Move services page to infrastructure section

The services page documents various services and tools which are
provided by the project. It's more related to the infrastructure and
less related to the community section.

Thus, move it to the infrastructure section.

Change-Id: I0ca2aba8ae817cf874367fa17e567065aec99a93
Signed-off-by: Felix Singer <felixsinger@posteo.net>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/62442
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin L Roth <martinroth@google.com>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>

Documentation/community/index.md

@@ -3,5 +3,4 @@
 * [Code of Conduct](code_of_conduct.md)
 * [Language style](language_style.md)
 * [Community forums](forums.md)
-* [Project services](services.md)
 * [coreboot at conferences](conferences.md)

Documentation/infrastructure/index.md

@@ -2,6 +2,11 @@
 
 This section contains documentation about our infrastructure
 
+## Services
+
+* [Project services](services.md)
+
+
 ## Jenkins builders and builds
 * [Setting up Jenkins build machines](builders.md)
 * [Coverity Scan integration](coverity.md)