Making the pre-release tag configurable based on the tag (#184)

.github/workflows/github-release.yml

@@ -121,6 +121,21 @@ jobs:
 
     steps:
     # Creating the release on Github
+    - name: Get the version
+      id: get_version
+      run: echo ::set-output name=tag::${GITHUB_REF#refs/tags/}
+
+    # If the tag has the string "beta", then mark the Github release as a pre-release
+    - name: Get the version
+      id: get_release
+      run: |
+        STATUS=false
+        if [[ ! ${{steps.get_version.outputs.tag}} == *"beta"* ]]; then 
+          STATUS=true
+        fi
+
+        echo ::set-output name=status::${STATUS}
+
     - name: Create Release
       id: create_release
       uses: actions/create-release@v1
@@ -130,5 +145,5 @@ jobs:
         tag_name: ${{ github.ref }}
         release_name: Release ${{ github.ref }}
         draft: false
-        prerelease: false    
+        prerelease: ${{steps.get_release.outputs.status}}