Document installing HIP 7 package (#5107)

docs-source/usersguide/application/01_getting_started.rst

@@ -93,8 +93,8 @@ GPU), type
     pip install openmm[cuda12]
 
 This will install a copy of the CUDA platform compiled with CUDA 12.  :code:`cuda13`
-is also available.  Alternatively, if you have an AMD GPU, use this command to
-include the HIP platform (compiled with HIP version 6)
+is also available.  Alternatively, if you have an AMD GPU, specify :code:`hip6`
+or :code:`hip7` to install the HIP platform (compiled with HIP version 6 or 7):
 ::
 
     pip install openmm[hip6]