added publish to dockerhub action

* upon push
* using the token
* also creating snapshots (for reproducibility)
* adding badge for publish action
* moving testing script

.github/workflows/dockerimage.yml

@@ -9,4 +9,4 @@ jobs:
     steps:
       - uses: actions/checkout@v1
       - name: Build the Docker image
-        run: ./build-docker.sh && ./run-docker.sh &&  ./test/wait-for-it.sh localhost:8090 -t 120 
+        run: ./build-docker.sh && ./run-docker.sh &&  ./docker_files/wait-for-it.sh localhost:8090 -t 120

.github/workflows/publishdocker.yml

@@ -0,0 +1,15 @@
+name: Publish Docker
+on: [push]
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@master
+    - name: Publish to Registry
+      uses: elgohr/Publish-Docker-Github-Action@master
+      with:
+        name: materialscloud/tools-barebone
+        username: ${{ secrets.DOCKER_USERNAME }}
+        password: ${{ secrets.DOCKER_PASSWORD }}
+        snapshot: true
+

README.md

@@ -1,6 +1,8 @@
 # tools-barebone
 
 [![Actions Status](https://github.com/materialscloud-org/tools-barebone/workflows/Docker%20Image%20Build%20CI/badge.svg)](https://github.com/materialscloud-org/tools-barebone/actions)
+[![Actions Status](https://github.com/materialscloud-org/tools-barebone/workflows/Publish%20Docker/badge.svg)](https://github.com/materialscloud-org/tools-barebone/actions)
+
 
 `tools-barebone` is a framework to develop and deploy small web apps,
 implemented in Python using Flask Jinja2 templates.