Update the Core file loading instructions so they keep the process stopped after attaching to a core file.

llvm-svn: 339954

lldb/tools/lldb-vscode/README.md

@@ -190,5 +190,6 @@ Loading a core file can use the `"attach"` request along with the
   "type": "lldb-vscode",
   "request": "attach",
   "attachCommands": ["target create -c /path/to/123.core /path/to/executable"],
+  "stopOnEntry": false
 }
 ```