Various Github Action improvement (#1610)

.github/workflows/ci.yml

@@ -1,16 +1,18 @@
-name: check
+name: CI
 on:
-  pull_request:
   push:
+    branches: master
+  pull_request:
 jobs:
-  check:
+  test:
     runs-on: ubuntu-latest
+    name: test (Python ${{ matrix.python-version }})
     strategy:
       matrix:
         python-version: [3.5, 3.6, 3.7, 3.8]
     steps:
       - uses: actions/checkout@v2
-      - name: Set up Python ${{ matrix.python-version }}
+      - name: Set up Python
         uses: actions/setup-python@v2
         with:
           python-version: "${{ matrix.python-version }}"
@@ -18,10 +20,8 @@ jobs:
         run: |
           python -m pip install --upgrade pip
           pip install tox tox-gh-actions
-      - name: Test with tox
+      - name: Run tests
         run: tox
       - name: Upload coverage to Codecov
-        if: matrix.python-version == 3.6
         uses: codecov/codecov-action@v1
-        with:
-          file: ./coverage.xml
+

.github/workflows/pypi-release.yml

@@ -3,7 +3,7 @@ on:
   release:
     types: [created]
 jobs:
-  deploy:
+  publish:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2

README.md

@@ -1,7 +1,7 @@
 # PyGitHub
 
 [![PyPI](https://img.shields.io/pypi/v/PyGithub.svg)](https://pypi.python.org/pypi/PyGithub)
-![check](https://github.com/PyGithub/PyGithub/workflows/check/badge.svg)
+![CI](https://github.com/PyGithub/PyGithub/workflows/CI/badge.svg)
 [![readthedocs](https://img.shields.io/badge/docs-latest-brightgreen.svg?style=flat)](https://pygithub.readthedocs.io/en/latest/?badge=latest)
 [![License](https://img.shields.io/badge/license-LGPL-blue.svg)](https://en.wikipedia.org/wiki/GNU_Lesser_General_Public_License)
 [![Slack](https://img.shields.io/badge/Slack%20channel-%20%20-blue.svg)](https://join.slack.com/t/pygithub-project/shared_invite/zt-duj89xtx-uKFZtgAg209o6Vweqm8xeQ)

codecov.yml

@@ -0,0 +1,2 @@
+comment:
+  after_n_builds: 4