Remove Azure CI

Add gh actions for cargo check using rust nightly

Add readme about actions workflows

Add basic Dockerfile

Add action workflow for docker publish

Change check action to test action

Update workflow readme without rust nightly

Rename test action file

Add gh actions to push latest docker image from master

Update github action for publish docker image

Add 2 steps dockerfile based on alpine

Update readme badges to match new CI

.github/workflows/publish-docker-latest.yml

@@ -0,0 +1,19 @@
+---
+on:
+  push:
+    branches:
+      - master
+
+name: Publish latest image to Docker Hub
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v1
+      - name: Publish to Registry
+        uses: elgohr/Publish-Docker-Github-Action@master
+        with:
+          name: getmeili/meilisearch
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_PASSWORD }}