Document possibility to limit API Repo search to topics only. (#7957)

Signed-off-by: David Svantesson <davidsvantesson@gmail.com>

routers/api/v1/repo/repo.go

@@ -51,6 +51,10 @@ func Search(ctx *context.APIContext) {
 	//   in: query
 	//   description: keyword
 	//   type: string
+	// - name: topic
+	//   in: query
+	//   description: Limit search to repositories with keyword as topic
+	//   type: boolean
 	// - name: uid
 	//   in: query
 	//   description: search only for repos that the user with the given id owns or contributes to

templates/swagger/v1_json.tmpl

@@ -1093,6 +1093,12 @@
             "name": "q",
             "in": "query"
           },
+          {
+            "type": "boolean",
+            "description": "Limit search to repositories with keyword as topic",
+            "name": "topic",
+            "in": "query"
+          },
           {
             "type": "integer",
             "format": "int64",