Add recommended requirements to user guide (#16666)

Summary of the issue:
As discussed in #16490 and #15902 (comment) that feature descriptions should come before settings tables for features in the user guide.
This is because a basic description is more common than detailed tables in reference manuals

Description of user facing changes
Fixes up order for feature descriptions in the user guide standards

user_docs/en/userGuide.md

@@ -39,8 +39,17 @@ Major highlights include:
 
 ### System Requirements {#SystemRequirements}
 
+#### Recommended System Requirements {#MinimumSystemRequirements}
+* Operating Systems: 64-bit editions of Windows 10, Windows 11, and Window Server 2022
+  * both AMD64 and ARM64 variants of Windows are supported.
+* at least 150 MB of storage space.
+* at least 4 GB of RAM.
+
+#### Minimum System Requirements {#MinimumSystemRequirements}
 * Operating Systems: all 32-bit and 64-bit editions of Windows 8.1, Windows 10, Windows 11, and all Server Operating Systems starting from Windows Server 2012 R2.
   * both AMD64 and ARM64 variants of Windows are supported.
+  * Note 32-bit operating systems are no longer under active support.
+  * Note that Windows 8.1 and Windows Server versions older than 2022 are no longer under active support.
 * at least 150 MB of storage space.
 
 ### Internationalization {#Internationalization}