Adds initial readme (#4)

#### 📖 Summary

- Adds initial readme

#### 📑 Test Plan

> 💡 Select your test plan for the code changes.

- [x] CI pipeline tests
- [ ] Custom test
- [ ] No test plan

##### Details / Justification

<!-- Add your test details or justification for missing tests here. -->

#### 📚 Additional Notes

<!-- A place for additional detail notes. -->

Co-authored-by: OCram85 <marco.blessing@googlemail.com>
Reviewed-on: #4

.gitea/workflows/ci.yaml

@@ -1,26 +1,34 @@
 name: ci
 
-run-name: docker pipeline
-
 on:
   push:
-    #branches: none #[ main ]
-    tags-ignore:
-      - '*'
+    branches:
+      - 'main'
+    tags:
+      - 'v*'
   pull_request:
-    #branches:  none # [ main ]
-  # Allows you to run this workflow manually from the Actions tab
-  workflow_dispatch:
+    branches:
+      - 'main'
+
 
 jobs:
-  test-build:
+  docker:
     runs-on: ubuntu-latest
     container:
       image: catthehacker/ubuntu:act-latest
     steps:
-      #-
-      #  name: Set up QEMU
-      #  uses: actions/setup-qemu-action@v2
+      -
+        name: Docker meta
+        id: meta
+        uses: actions/metadata-action@v4
+        with:
+          images: |
+            gitea.ocram85.com/ocram85/swarmproxy
+          tags: |
+            type=ref,event=branch
+            type=ref,event=pr
+            type=semver,pattern={{version}}
+            type=semver,pattern={{major}}.{{minor}}
       -
         name: Set up Docker Buildx
         uses: actions/setup-buildx-action@v2
@@ -36,5 +44,6 @@ jobs:
         name: Build and push
         uses: actions/build-push-action@v4
         with:
-          push: false
-          tags: gitea.ocram85.com/ocram85/swarmproxy:next
+          push: ${{ github.event_name != 'pull_request' }}
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}