Fix rypo

Signed-off-by: Jean-Christophe Morin <[email protected]>

docs/source/installation.rst

@@ -8,7 +8,7 @@ Installation Script
 To install rez, you will need:
 
 1. Python 3.7 or above. We support 3.7, 3.8, 3.9, 3.10 and 3.11.
-   The pythoon interpreter you use to run the install script will be the interpreter
+   The python interpreter you use to run the install script will be the interpreter
    used by rez itself.
 2. The source code. You can get it by either cloning the `repository <https://github.com/AcademySoftwareFoundation/rez>`_
    with git or downloading it from the `latest release <https://github.com/AcademySoftwareFoundation/rez/releases/latest>`_.