Fix typo (#34289)

Update index.md

Removes duplicated "with" on line 149

files/en-us/learn/common_questions/tools_and_setup/set_up_a_local_testing_server/index.md

@@ -146,5 +146,5 @@ For example, the following languages/frameworks come with a development server:
   php -S localhost:8000
   ```
 
-If you're not working directly with with a server-side framework or a programming language that provides a development server, Python's `http.server` module can also be used to test server-side code written in languages such as Python, PHP, JavaScript, and so on, by invoking server-side Common Gateway Interface (CGI) scripts.
+If you're not working directly with a server-side framework or a programming language that provides a development server, Python's `http.server` module can also be used to test server-side code written in languages such as Python, PHP, JavaScript, and so on, by invoking server-side Common Gateway Interface (CGI) scripts.
 For examples of how to use this feature see [Execute a Script Remotely Through the Common Gateway Interface (CGI)](https://realpython.com/python-http-server/#execute-a-script-remotely-through-the-common-gateway-interface-cgi) in _How to Launch an HTTP Server in One Line of Python Code_ on realpython.com.