update readme

readme.txt

@@ -9,3 +9,19 @@ create a .env file:
 
 run
 	make
+
+you will need to great an access token in gitea account settings (/user/settings/applications) with `repo` scope ticked
+
+you may also need to set CORS origin header for gitea. nginx example:
+
+	server {
+		location / {
+			add_header Access-Control-Allow-Origin "https://<REPOSEARCH-DOMAIN>";
+
+			...
+		}
+
+		...
+	}
+
+