Small fixes following tech review

Author: sebastienduverne

com.unity.cinemachine/Documentation~/InstallationAndUpgrade.md

@@ -11,15 +11,15 @@ To install this package, follow the instructions in the [Package Manager documen
 
 This version of Cinemachine is compatible with the following versions of the Unity Editor:
 
-* 2022.2.16f1 and later
+* 2022.3 LTS and later
 
 Cinemachine has few external dependencies. Just install it and start using it. If you are also using the Post Processing via HDRP or URP volumes, then adapter modules are provided - protected by `ifdef` directives which auto-define if the presence of the dependencies is detected.  
 
 There are similar `ifdef`-protected behaviours for other packages, such as Timeline and UGUI.
 
 ## Cinemachine project upgrade
 
-If you have a project that uses an earlier version of Cinemachine and you _need_ to update it to use the latest Cinemachine version, refer to the links in the table below.
+If you have a project that uses an earlier version of Cinemachine and you need to update it to use the latest Cinemachine version, refer to the links in the table below.
 
 > [!CAUTION]
 > The Cinemachine 3.x architecture includes many breaking changes compared to Cinemachine 2.x and earlier versions. While it is possible to upgrade an existing project from Cinemachine 2.x to Cinemachine 3.x, you should think carefully about whether you are willing to put in the work.