Added documentation for dry option

README.md

@@ -10,6 +10,7 @@ A GitHub action for styling files with [prettier](https://prettier.io).
 
 | Parameter | Required | Default | Description |
 | - | :-: | :-: | - |
+| dry | :x: | False | Runs the action in dry mode. Files wont get changed and the action fails if there are unprettified files. |
 | prettier_options | :x: | `--write **/*.js` | Prettier options (by default it applies to the whole repository) |
 | commit_options | :x: | - | Custom git commit options |
 | commit_message | :x: | Prettified Code! | Custom git commit message |

entrypoint.sh

@@ -41,12 +41,13 @@ npm install --silent --global prettier
 
 echo "Prettifing files..."
 echo "Files:"
-prettier $INPUT_PRETTIER_OPTIONS
+prettier $INPUT_PRETTIER_OPTIONS || echo "Problem running prettier with $INPUT_PRETTIER_OPTIONS"
 
 # To keep runtime good, just continue if something was changed
 if _git_changed;
 then
   if $INPUT_DRY; then
+    echo "Prettier found unpretty files."
     exit 1
   else
     # Calling method to configure the git environemnt