updated version numbers in read me

Author: morrison-turnansky

_get_started/installation/linux.md

@@ -25,7 +25,7 @@ PyTorch is supported on Linux distributions that use [glibc](https://www.gnu.org
 ### Python
 {: #linux-python}
 
-Python 3.9-3.12 is generally installed by default on any of our supported Linux distributions, which meets our recommendation.
+Python 3.9-3.13 is generally installed by default on any of our supported Linux distributions, which meets our recommendation.
 
 > Tip: By default, you will have to use the command `python3` to run Python. If you want to use just the command `python`, instead of `python3`, you can symlink `python` to the `python3` binary.
 

_get_started/installation/mac.md

@@ -13,7 +13,7 @@ PyTorch is supported on macOS 10.15 (Catalina) or above.
 ### Python
 {: #mac-python}
 
-It is recommended that you use Python 3.9 - 3.12.
+It is recommended that you use Python 3.9 - 3.13.
 You can install Python either through [Homebrew](https://brew.sh/) or
 the [Python website](https://www.python.org/downloads/mac-osx/).