openapi: Add documentation for bot `services`.
openapi: Add documentation for bot `services`.

punchagan/zulip,brainwane/zulip,zulip/zulip,rht/zulip,brainwane/zulip,hackerkid/zulip,kou/zulip,andersk/zulip,showell/zulip,brainwane/zulip,andersk/zulip,rht/zulip,hackerkid/zulip,rht/zulip,brainwane/zulip,kou/zulip,zulip/zulip,hackerkid/zulip,kou/zulip,zulip/zulip,showell/zulip,eeshangarg/zulip,punchagan/zulip,zulip/zulip,eeshangarg/zulip,brainwane/zulip,punchagan/zulip,punchagan/zulip,kou/zulip,andersk/zulip,rht/zulip,showell/zulip,hackerkid/zulip,hackerkid/zulip,hackerkid/zulip,zulip/zulip,zulip/zulip,punchagan/zulip,kou/zulip,rht/zulip,eeshangarg/zulip,zulip/zulip,andersk/zulip,showell/zulip,showell/zulip,eeshangarg/zulip,andersk/zulip,showell/zulip,rht/zulip,eeshangarg/zulip,andersk/zulip,andersk/zulip,brainwane/zulip,rht/zulip,punchagan/zulip,punchagan/zulip,brainwane/zulip,kou/zulip,kou/zulip,eeshangarg/zulip,hackerkid/zulip,showell/zulip,eeshangarg/zulip