docs(pyenv): cheatsheet: add `pyenv global system`

diff --git a/pyenv/README.md b/pyenv/README.md
index aa7a24d4fc5cb9daf168786a6305fee593e24a6c..85a7eae29b0fbf8b33ac3eb0b1c3c3e43e256fd5 100644 (file)
--- a/pyenv/README.md
+++ b/pyenv/README.md
@@ -59,6 +59,12 @@ python --version
 #> Python 3.9.1
 ```
 
+Revert back to your system python:
+
+```bash
+pyenv global system
+```
+
 ### List all available python version
 
 ```bash