explain caches

Author: TylerMSFT

docs/build/reference/jump-table-rdata.md

@@ -17,7 +17,7 @@ Puts the generated switch case jump tables in the `.rdata` section instead of al
 
 ## Remarks
 
-Putting jump tables generated for switch case statements in the `.rdata` section prevents the jump table from being loaded into both Icache and Dcache, potentially increasing performance. The `.rdata` section is where const initialized data is stored.
+Putting jump tables generated for switch case statements in the `.rdata` section prevents the jump table from being loaded into both the instruction cache (iCache) and data cache (dCache), potentially increasing performance. The `.rdata` section is where const initialized data is stored.
 
 > [!IMPORTANT]
 > This flag only applies to x64 code.