Add pre-commit GH action

.github/workflows/pre-commit.yml

@@ -0,0 +1,13 @@
+name: pre-commit
+
+on:
+  pull_request:
+    types: [opened, reopened, synchronize]
+
+jobs:
+  pre-commit:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - uses: actions/setup-python@v2
+    - uses: pre-commit/action@v2.0.3

README.md

@@ -1,3 +1,5 @@
+[![pre-commit](https://img.shields.io/badge/pre--commit-enabled-brightgreen?logo=pre-commit&logoColor=white)](https://github.com/pre-commit/pre-commit)
+
 # Espressif IDF Extra Components
 
 This repository aims to store [ESP-IDF](https://github.com/espressif/esp-idf) extra components