Update manual_dispatch.yml

.github/workflows/manual_dispatch.yml

@@ -6,13 +6,15 @@ on:
   workflow_dispatch:
     inputs:
       directory:
+        description: 'What is the file path to the folder that contains the Dockerfile starting from the base of the repo?'
         required: true
         type: string
       tag:
+        description: 'Tag e.g. jhudsl/base_ottr:main'
         required: true
         type: string
       dockerhubpush:
-        description: 'Push to Dockerhub?'
+        description: 'Push to Dockerhub? true or false'
         required: false
         default: 'false'
         type: string