Make clear it needs the full path

Author: jneira

package-lock.json

@@ -136,7 +136,7 @@
           "scope": "resource",
           "type": "string",
           "default": "",
-          "markdownDescription": "Manually set a language server executable. Can be something on the $PATH or a path to an executable itself. Works with `~,` `${HOME}` and `${workspaceFolder}`. **Deprecated scope**: This option will be set to `machine` scope in a future release, so it can be changed only globally, not per workspace."
+          "markdownDescription": "Manually set a language server executable. Can be something on the $PATH or the full path to the executable itself. Works with `~,` `${HOME}` and `${workspaceFolder}`. **Deprecated scope**: This option will be set to `machine` scope in a future release, so it can be changed only globally, not per workspace."
         },
         "haskell.serverExtraArgs": {
           "scope": "resource",