Fix continuous integration (#102)

* Building with 3.5 fails, only keep 3.8

* Switch to Coveralls Github Action

* Try different GH action

* Fix workflow syntax

* Update README to GH Actions CI

Author: wetneb

.coveragerc

@@ -0,0 +1,2 @@
+[run]
+relative_files = True

.github/workflows/tests.yml

@@ -1,6 +1,10 @@
 name: Python tests
 
-on: [push, pull_request]
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
 
 jobs:
   build:
@@ -9,7 +13,7 @@ jobs:
 
     strategy:
       matrix:
-        python: [ 3.5, 3.8 ]
+        python: [ 3.8 ]
 
     steps:
     - uses: actions/checkout@v2
@@ -27,8 +31,16 @@ jobs:
       run: |
         coverage run --omit=/home/travis/virtualenv/* -m unittest tests
     - name: Coveralls
-      run: coveralls --finish
-      env:
-        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-      
+      uses: AndreMiras/coveralls-python-action@develop
+      with:
+        parallel: true
+        flag-name: Unit Test
 
+  coveralls_finish:
+    needs: build
+    runs-on: ubuntu-latest
+    steps:
+    - name: Coveralls Finished
+      uses: AndreMiras/coveralls-python-action@develop
+      with:
+        parallel-finished: true

README.md

@@ -1,6 +1,7 @@
 Wikibase reconciliation interface for OpenRefine 
 ================================================
-[![Build Status](https://travis-ci.org/wetneb/openrefine-wikibase.svg?branch=master)](https://travis-ci.org/wetneb/openrefine-wikibase) [![Documentation Status](https://readthedocs.org/projects/openrefine-wikibase/badge/?version=latest)](https://openrefine-wikibase.readthedocs.io/en/latest/?badge=latest) [![Coverage Status](https://coveralls.io/repos/github/wetneb/openrefine-wikidata/badge.svg?branch=master)](https://coveralls.io/github/wetneb/openrefine-wikidata?branch=master)
+i[![Python tests](https://github.com/wetneb/openrefine-wikibase/actions/workflows/tests.yml/badge.svg)](https://github.com/wetneb/openrefine-wikibase/actions/workflows/tests.yml) [![Documentation Status](https://readthedocs.org/projects/openrefine-wikibase/badge/?version=latest)](https://openrefine-wikibase.readthedocs.io/en/latest/?badge=latest) [![Coverage Status](https://coveralls.io/repos/github/wetneb/openrefine-wikidata/badge.svg?branch=master)](https://coveralls.io/github/wetneb/openrefine-wikidata?branch=master)
+
 
 An instance of this endpoint for Wikidata can be found at:
 https://wikidata.reconci.link/en/api