Add more details about the cache location

Author: martinbonnin

jvm/main-kts/MainKts.md

@@ -45,7 +45,7 @@ provided that the shebang line is added to the script and works in the given OS
 ### Caching
 
 The compiled scripts are cached to the directory defined by an environment variable `KOTLIN_MAIN_KTS_COMPILED_SCRIPTS_CACHE_DIR` 
-*(`$TEMP/main.kts.compiled.cache` by default)*, and if the script is not changed, the compiled one is executed from the cache.
+*(`$TEMP/main.kts.compiled.cache` by default, where `TEMP` is a platform specific directory for cache. For an example `~/Library/Cache` on MacOS)*, and if the script is not changed, the compiled one is executed from the cache.
 
 ### IntelliJ support