add gitea repo for Internal documentation

otc_metadata/data/documents/sd-umn.yaml

@@ -0,0 +1,9 @@
+---
+hc_location: usermanual/sd
+html_location: docs/sd/umn
+link: /status-dashboard/umn/
+pdf_name: sd-umn
+rst_location: umn/source
+service_type: sd
+title: User Guide
+type: umn

otc_metadata/data/services/intdocs.yaml

@@ -0,0 +1,13 @@
+---
+environment: internal
+repositories:
+- environment: internal
+  repo: docs/internal-documentation
+  type: gitea
+service_category: other
+service_title: Internal Documentation
+service_type: intdocs
+service_uri: internal-documentation
+teams:
+- name: docs-eco-rw
+  permission: write

otc_metadata/data/services/sd.yaml

@@ -1,5 +1,5 @@
 ---
-environment: internal
+environment: hidden
 repositories:
 - environment: internal
   repo: docs/status-dashboard