Fix there can be only one run per step

.github/workflows/ubuntu.yml

@@ -6,22 +6,22 @@ jobs:
     env:
       OF_URL: https://openframeworks.cc/versions/v0.11.0/of_v0.11.0_linux64gcc6_release.tar.gz
     steps:
-      - name: Download openFrameworks
+      - name: Fetch ofxPiMapper
         uses: actions/checkout@v2
         with:
           fetch-depth: 1
-      - name: Download openFrameworks and add ofxPiMapper
+      - name: Download openFrameworks and add ofxPiMapper to addons
-        run: mkdir .ofxPiMapper
-        run: mv ./* .ofxPiMapper/
-        run: wget ${OF_URL} --tries=10 --quiet
         run: |
+          mkdir .ofxPiMapper
+          mv ./* .ofxPiMapper/
+          wget ${OF_URL} --tries=10 --quiet
           echo "Unarchive openFrameworks"
           OF_ARCHIVE_NAME=$(basename -- "$OF_URL")
           tar -xf ${OF_ARCHIVE_NAME}
           rm ${OF_ARCHIVE_NAME}
           OF_EXTRACT_NAME=$(basename ${OF_ARCHIVE_NAME} .tar.gz)
           mv ${OF_EXTRACT_NAME} openFrameworks
-        run: mv .ofxPiMapper openFrameworks/addons/ofxPiMapper
+          mv .ofxPiMapper openFrameworks/addons/ofxPiMapper
       - name: Install openFrameworks Dependencies
         working-directory: ./openFrameworks/scripts/linux/ubuntu
         run: sudo ./install_dependencies.sh -y