Fix: the GetSHA256OfString example showed the hash for 'test' instead of 'Test'.

ISHelp/isxfunc.xml

@@ -1208,7 +1208,7 @@ end;
   SHA256: String;
 begin
   SHA256 := GetSHA256OfString('Test');
-  // SHA256 = '9f86d081884c7d659a2feaa0c55ad015a3bf4f1b2b0b822cd15d6c15b0f00a08'
+  // SHA256 = '532eaabd9574880dbf76b9b8cc00832c20a6ec113d682299550d7a6e0f345e25'
 end;
 </pre></example>
       </function>