Updated readme and github actions

.github/workflows/docker-image.yml

@@ -22,6 +22,11 @@ jobs:
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
+      -
+        name: Extract GitHub tag
+        id: extract_tag
+        run: echo "GIT_TAG=${GITHUB_REF#refs/tags/}" >> $GITHUB_ENV
+        if: startsWith(github.ref, 'refs/tags/')
       -
         name: Build and push
         uses: docker/build-push-action@v5
@@ -30,4 +35,4 @@ jobs:
           platforms: linux/amd64,linux/arm64
           tags: |
             tess1o/go-ecoflow-exporter:latest
-            tess1o/go-ecoflow-exporter:${{ github.ref_name }}
+            tess1o/go-ecoflow-exporter:${{ steps.extract_tag.outputs.GIT_TAG || github.sha }}

README.md

@@ -7,6 +7,7 @@ are:
 
 1. Prometheus
 2. TimescaleDB
+3. Redis (planned, not implemented yet)
 
 Depending on your configuration you can export the metrics to one of those systems or to all at once.