Update README and publish to PyPI

.github/workflows/publish-to-test-pypi.yml

@@ -0,0 +1,29 @@
+name: Publish Python 🐍 distributions 📦 to PyPI and TestPyPI
+
+on:
+  release:
+    types:
+    - published
+
+jobs:
+  publish:
+    name: Build and publish to PyPI
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@master
+
+    - name: Set up Python 3
+      uses: actions/setup-python@v2
+      with:
+        python-version: 3.x
+
+    - name: Build distribution 📦
+      run: |
+        pip3 install wheel
+        python3 setup.py sdist bdist_wheel
+
+    - name: Publish distribution 📦 to PyPI
+      if: startsWith(github.ref, 'refs/tags')
+      uses: pypa/gh-action-pypi-publish@master
+      with:
+        password: ${{ secrets.PYPI_PASSWORD }}

README.md

@@ -1,2 +1,19 @@
 # find-gcp-keys
-Find and report valid Google Service Account keys on a filesystem
+
+This tool finds and prints valid Google Service Account keys on your filesystem.
+This is useful to keep track of any unexpired/non-disabled keys you may have.
+
+It does NOT require any special permissions,
+or even to be authenticated with Google Cloud SDK.
+
+## Requirements
+
+Python 3.7+
+
+## Usage
+
+```
+pip3 install find-gcp-keys
+
+find_gcp_keys <dir_path>
+```