Correct documentation for manual trigger

Change-Id: I03cf133045bfef131f315b707178798a82dabc00
diff --git a/java/Documentation/about.md b/java/Documentation/about.md
index b392dbf..f864151 100644
--- a/java/Documentation/about.md
+++ b/java/Documentation/about.md
@@ -72,7 +72,7 @@
 
 ```sh
 curl -X POST
-  http://HOST/a/projects/codesearch/branches/master/update_manifest
+  http://HOST/a/projects/platform%2Fmanifest/branches/master/update_manifest
 ```