Update README.md

Signed-off-by: de_soot <[email protected]>

Author: de-soot

README.md

@@ -4,6 +4,8 @@ Modified Caesar Cipher in the command line made in Python.
 A small little program I created for my school's Computer Science class homework assignment.
 
 ## Usage
-Download Python
+Either:
+- Download `Python 3.X.X` and `main.py` and run `main.py`
 
-Download and run `main.py`
+Or:
+- Open this link in your browser: **https://onlinegdb.com/IRGQKi8Mt** and click the `Run` button