Update README.md

Kenneth Reitz · web-flow · commit ea01bad59822 · 2023-07-27T11:10:24.000-04:00
diff --git a/README.md b/README.md
@@ -19,7 +19,7 @@ This project is under development, and will be released to the public on PyPi so
 
 To install the `serpapi` package, simply run the following command:
 
-```sh
+```bash
 $ pip install serpapi
 ```
 
