Expand description for codeQL.cli.executablePath

To match what the code actually does.

Author: RasmusWL

extensions/ql-vscode/package.json

@@ -189,7 +189,7 @@
           "scope": "machine-overridable",
           "type": "string",
           "default": "",
-          "markdownDescription": "Path to the CodeQL executable that should be used by the CodeQL extension. The executable is named `codeql` on Linux/Mac and `codeql.exe` on Windows. If empty, the extension will look for a CodeQL executable on your shell PATH, or if CodeQL is not on your PATH, download and manage its own CodeQL executable."
+          "markdownDescription": "Path to the CodeQL executable that should be used by the CodeQL extension. The executable is named `codeql` on Linux/Mac and `codeql.exe` on Windows. If empty, the extension will look for a CodeQL executable on your shell PATH, or if CodeQL is not on your PATH, download and manage its own CodeQL executable (note: if you later introduce CodeQL on your PATH, the extension will prefer a CodeQL executable it has downloaded itself)."
         },
         "codeQL.runningQueries.numberOfThreads": {
           "type": "integer",