fix: fix pr_title and pr_body action inputs

fixes #6

README.md

@@ -54,7 +54,7 @@ jobs:
         source_branch: ""                     # If blank, default: triggered branch
         destination_branch: "master"          # If blank, default: master
         pr_title: "Pulling ${{ github.ref }} into master"
-        pr_body: ":crown: *An automated PR*"  # Full markdown support
+        pr_body: ":crown: *An automated PR*"  # Full markdown support, requires pr_title to be set
         pr_reviewer: "wei,worker"             # Comma-separated list (no spaces)
         pr_assignee: "wei,worker"             # Comma-separated list (no spaces)
         pr_label: "auto-pr"                   # Comma-separated list (no spaces)
@@ -77,4 +77,4 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
 
 <!-- ALL-CONTRIBUTORS-LIST:END -->
 
-This project follows the [all-contributors](https://github.com/all-contributors/all-contributors) specification. Contributions of any kind welcome!
+This project follows the [all-contributors](https://github.com/all-contributors/all-contributors) specification. Contributions of any kind welcome!

entrypoint.sh

@@ -40,7 +40,7 @@ fi
 # Workaround for `hub` auth error https://github.com/github/hub/issues/2149#issuecomment-513214342
 export GITHUB_USER="$GITHUB_ACTOR"
 
-PR_ARG="$INPUTS_PR_TITLE"
+PR_ARG="$INPUT_PR_TITLE"
 if [[ ! -z "$PR_ARG" ]]; then
   PR_ARG="-m \"$PR_ARG\""