diff --git a/README.md b/README.md
index 20cb78d..7e820bb 100644
--- a/README.md
+++ b/README.md
@@ -1 +1,16 @@
 # Simple Management Protocol (SMP)
+
+## lint
+
+### windows
+
+```ps
+. ./envr.ps1
+lint
+```
+
+### linux
+
+```bash
+black --check . && isort --check-only . && flake8 . && mypy .
+```