More CI Cleanup (#886)

Author: blink1073

.github/workflows/main.yml

@@ -16,7 +16,7 @@ defaults:
 
 
 jobs:
-  pre-commit:
+  pre_commit:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
@@ -98,7 +98,6 @@ jobs:
           only_create_file: 1
       - name: Run the unit tests
         run: |
-          export PIP_CONSTRAINT="./contraints_file.txt"
           hatch run test:nowarn || hatch run test:nowarn --lf
 
   test_prereleases:
@@ -110,8 +109,7 @@ jobs:
       - uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
       - name: Run the tests
         run: |
-          export PIP_PRE=1
-          hatch run test:nowarn || hatch run test:nowarn --lf
+          PIP_PRE=1 hatch run test:nowarn || hatch run test:nowarn --lf
 
   make_sdist:
     name: Make SDist
@@ -140,7 +138,7 @@ jobs:
       - docs
       - check_links
       - test_minimum_verisons
-      - pre-commit
+      - pre_commit
       - test_prereleases
       - test_sdist
     runs-on: ubuntu-latest

README.md

@@ -1,7 +1,8 @@
 # Jupyter Client
 
 [![Build Status](https://github.com/jupyter/jupyter_client/workflows/CI/badge.svg)](https://github.com/jupyter/jupyter_client/actions)
-[![Code style: black](https://img.shields.io/badge/code%20style-black-000000.svg)](https://github.com/psf/black)
+[![codecov](https://codecov.io/gh/jupyter/jupyter_client/branch/main/graph/badge.svg?token=kxoFu4KnhT)](https://codecov.io/gh/jupyter/jupyter_client)
+[![Documentation Status](https://readthedocs.org/projects/jupyter-client/badge/?version=latest)](http://jupyter-client.readthedocs.io/en/latest/?badge=latest)
 
 `jupyter_client` contains the reference implementation of the [Jupyter protocol].
 It also provides client and kernel management APIs for working with kernels.