style(ci): add empty lines for readability

.github/workflows/build-user-config.yml

@@ -28,14 +28,17 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v2
+
       - name: Install yaml2json
         run: python3 -m pip install remarshal
+
       - id: set-matrix
         name: Fetch Build Matrix
         run: |
           matrix=$(yaml2json ${{ inputs.build_matrix_path }} | jq -c .)
           yaml2json ${{ inputs.build_matrix_path }}
           echo "::set-output name=matrix::${matrix}"
+
   build:
     runs-on: ubuntu-latest
     container:
@@ -61,8 +64,10 @@ jobs:
           echo ::set-output name=extra-cmake-args::${EXTRA_CMAKE_ARGS}
           echo ::set-output name=artifact-name::${ARTIFACT_NAME}
           echo ::set-output name=display-name::${DISPLAY_NAME}
+
       - name: Checkout
         uses: actions/checkout@v2
+
       - name: Cache west modules
         uses: actions/cache@v2
         env:
@@ -79,12 +84,16 @@ jobs:
             ${{ runner.os }}-build-${{ env.cache-name }}-
             ${{ runner.os }}-build-
             ${{ runner.os }}-
+
       - name: West Init
         run: west init -l ${{ inputs.config_path }}
+
       - name: West Update
         run: west update
+
       - name: West Zephyr export
         run: west zephyr-export
+
       - name: West Build (${{ steps.variables.outputs.display-name }})
         run: |
           west build -s zmk/app -b ${{ matrix.board }} -- -DZMK_CONFIG=${GITHUB_WORKSPACE}/${{ inputs.config_path }} ${{ steps.variables.outputs.extra-cmake-args }} ${{ matrix.cmake-args }}
@@ -93,8 +102,10 @@ jobs:
         run: |
           if [ -f "build/zephyr/${{ matrix.board }}.dts.pre.tmp" ]; then cat -n build/zephyr/${{ matrix.board }}.dts.pre.tmp; fi
           if [ -f "build/zephyr/zephyr.dts" ]; then cat -n build/zephyr/zephyr.dts; fi
+      
       - name: ${{ steps.variables.outputs.display-name }} Kconfig file
         run: cat build/zephyr/.config | grep -v "^#" | grep -v "^$"
+      
       - name: Rename artifacts
         run: |
           mkdir build/artifacts
@@ -105,6 +116,7 @@ jobs:
           then
             cp build/zephyr/zmk.${{ inputs.fallback_binary }} "build/artifacts/${{ steps.variables.outputs.artifact-name }}.${{ inputs.fallback_binary }}"
           fi
+      
       - name: Archive (${{ steps.variables.outputs.display-name }})
         uses: actions/upload-artifact@v2
         with: