Bring back api/builds.md and direct to api/jobs.md

[ci skip]

doc/api/README.md

@@ -11,7 +11,6 @@ following locations:
 - [Award Emoji](award_emoji.md)
 - [Branches](branches.md)
 - [Broadcast Messages](broadcast_messages.md)
-- [Builds](builds.md)
 - [Build Variables](build_variables.md)
 - [Commits](commits.md)
 - [Deployments](deployments.md)
@@ -23,6 +22,7 @@ following locations:
 - [Group Members](members.md)
 - [Issues](issues.md)
 - [Issue Boards](boards.md)
+- [Jobs](jobs.md)
 - [Keys](keys.md)
 - [Labels](labels.md)
 - [Merge Requests](merge_requests.md)

doc/api/builds.md

+This document was moved to [another location](jobs.md).

doc/api/ci/builds.md

@@ -5,7 +5,7 @@ API used by runners to receive and update builds.
 >**Note:**
 This API is intended to be used only by Runners as their own
 communication channel. For the consumer API see the
-[Builds API](../builds.md).
+[Jobs API](../jobs.md).
 
 ## Authentication