Overhaul example with more information and CI

.github/workflows/ci.yaml

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+name: CI
+# https://docs.github.com/en/actions/reference/workflow-syntax-for-github-actions#concurrency
+# https://docs.github.com/en/developers/webhooks-and-events/events/github-event-types#pullrequestevent
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.number }}-${{ github.event.type }}
+  cancel-in-progress: true
+
+on:
+  push:
+  pull_request:
+  schedule:
+    # Every Saturday at midnight UTC
+    - cron: '0 0 * * 6'
+
+
+jobs:
+  satpy_compat:
+    name: Check Compatibility
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout source
+        uses: actions/checkout@v2
+
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: "3.10"
+
+      - name: Install dependencies
+        # TODO: Remove pyorbital after next Satpy 0.37.0 is released
+        run: |
+          python -m pip install --upgrade pip
+          pip install flake8 flake8-docstrings flake8-debugger flake8-bugbear pyorbital
+
+      - name: Install Plugin
+        run: |
+          pip install -e .
+
+      - name: Run linting
+        run: |
+          flake8 satpy_cpe/
+
+      - name: Check Satpy Composite Detection
+        run: |
+          cd /tmp
+          python -c "from satpy.composites.config_loader import load_compositor_configs_for_sensors as load_comps; assert any('my_ndvi' == data_id['name'] for data_id in load_comps({'viirs'})[0]['viirs'].keys())"

.gitignore

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+### PYTHON IGNORES ###
+*.py[cod]
+
+# Packages
+*.egg
+*.egg-info
+dist
+build
+doc/build
+eggs
+*.eggs
+parts
+bin
+var
+sdist
+develop-eggs
+.installed.cfg
+lib
+lib64
+
+# Installer logs
+pip-log.txt
+
+# Unit test / coverage reports
+.coverage
+.tox
+nosetests.xml
+htmlcov
+
+#Translations
+*.mo
+
+#Sphinx
+doc/source/_build/*
+
+#Mr Developer
+.mr.developer.cfg
+
+### C IGNORES ###
+# Object files
+*.o
+
+# Libraries
+*.lib
+*.a
+
+# Shared objects (inc. Windows DLLs)
+*.dll
+*.so
+*.so.*
+*.dylib
+
+# Executables
+*.exe
+*.out
+*.app
+
+# Others
+*~
+# PyCharm Settings
+.idea
+
+# VSCode Settings
+.vscode
+
+# vi / vim swp files
+*.swp
+.DS_STORE