fix: Reference correct package folder

Author: d3xter666

packages/documentation/docs/pages/Benchmarking.md

@@ -102,11 +102,11 @@ The following is a walk-through on how to evaluate the performance impact of an
 1. Prepare your change
     1. Switch to the branch that contains your change
         ```sh
-        (cd ../pages/builder && git checkout my-change)
+        (cd ../packages/builder && git checkout my-change)
         ```
     1. If your change requires different npm dependencies, reinstall them
         ```sh
-        (cd ../pages/builder && npm install)
+        (cd ../packages/builder && npm install)
         ```
     1. The link from UI5 CLI is still in place. However, if you have changes in **multiple** UI5 CLI modules, you might need to `npm link` those again