Update category comment

Author: Free-Pascal-meets-SDL-Website

units/SDL_cpuinfo.inc

@@ -7,13 +7,19 @@
 }
 
 {*
- * # CategoryCPUInfo
- *
- * CPU feature detection for SDL.
- *
- * These functions are largely concerned with reporting if the system has
- * access to various SIMD instruction sets, but also has other important info
- * to share, such as system RAM size and number of logical CPU cores.
+  * # CategoryCPUInfo
+  *
+  * CPU feature detection for SDL.
+  *
+  * These functions are largely concerned with reporting if the system has
+  * access to various SIMD instruction sets, but also has other important info
+  * to share, such as system RAM size and number of logical CPU cores.
+  *
+  * CPU instruction set checks, like SDL_HasSSE() and SDL_HasNEON(), are
+  * available on all platforms, even if they don't make sense (an ARM processor
+  * will never have SSE and an x86 processor will never have NEON, for example,
+  * but these functions still exist and will simply return false in these
+  * cases).
   }
 
 {*