Add admin_contact bulk update endpoint documentation

doc/repp/v1/admin_contacts.md

@@ -0,0 +1,30 @@
+# Admin domain contacts
+
+## PATCH https://repp.internet.ee/v1/domains/admin_contacts
+Replaces admin domain contacts of the current registrar.
+
+### Example request
+```
+PATCH /repp/v1/domains/admin_contacts HTTP/1.1
+Accept: application/json
+Content-Type: application/json
+Authorization: Basic dGVzdDp0ZXN0dGVzdA==
+
+{
+  "current_contact_id": "ATSAA:749AA80F",
+  "new_contact_id": "ATSAA:E36957D7"
+}
+```
+### Example response
+```
+{
+  "code": 1000,
+  "message": "Command completed successfully",
+  "data": {
+    "affected_domains": [
+      "private.ee",
+    ],
+    "skipped_domains": []
+  }
+}
+```

doc/repp/v1/domain_contacts.md

@@ -1,7 +1,7 @@
-# Domain contacts
+# Tech domain contacts
 
 ## PATCH https://repp.internet.ee/v1/domains/contacts
-Replaces all domain contacts of the current registrar.
+Replaces technical domain contacts of the current registrar.
 
 ### Example request
 ```