Update installing-drift-detection.md

Author: ZachGoldberg

docs/2.0/docs/pipelines/guides/installing-drift-detection.md

@@ -53,11 +53,11 @@ on:
   #  - cron: '15 12 * * 1'
   workflow_dispatch:
     inputs:
-      path:
-        description: (Optional) Path to filter units e.g. "./management/*"
+      pipelines_drift_detection_filter:
+        description: Limit drift detection to units matching filter https://docs.gruntwork.io/2.0/docs/pipelines/guides/running-drift-detection#drift-detection-filter
         type: string
-      branch-name:
-        description: (Optional) branch name to open Drift Detection PRs with
+      pipelines_drift_detection_branch:
+        description: The branch name used for drift remediation PRs
         default: drift-detection
         type: string
 permissions: