Add badges

.github/workflows/pytest.yml

@@ -18,4 +18,4 @@ jobs:
       - run: python -m pip install ".[dev, cli]"
       - run: coverage run -m pytest
       - run: coverage xml
-      - uses: codecov/codecov-action@v2
+      - uses: codecov/codecov-action@v3

README.md

@@ -1,5 +1,23 @@
 # nc-convert
 
+<p align="center">
+    <a href="https://github.com/tsdat/ncconvert/actions/workflows/pytest.yml">
+        <img src="https://github.com/tsdat/ncconvert/actions/workflows/pytest.yml/badge.svg">
+    </a>
+    <a href=https://badge.fury.io/py/ncconvert>
+        <img src="https://badge.fury.io/py/ncconvert.svg">
+    </a>
+    <a href="https://codecov.io/gh/tsdat/ncconvert" >
+        <img src="https://codecov.io/gh/tsdat/ncconvert/branch/main/graph/badge.svg"/>
+    </a>
+    <a href="https://codeclimate.com/github/tsdat/ncconvert/maintainability">
+        <img src="https://api.codeclimate.com/v1/badges/c39461855d8c99b676d9/maintainability" />
+    </a>
+    <a href=https://github.com/psf/black>
+        <img src="https://img.shields.io/badge/code%20style-black-000000.svg">
+    </a>
+</p>
+
 Converts netCDF to other formats
 
 ## Usage