change parameter name to --host-path

Author: Feiyang1

repo-scripts/api-documenter/README.md

@@ -7,7 +7,7 @@ and then generates files in [Markdown](https://en.wikipedia.org/wiki/Markdown) f
 ## Generate toc for Firebase devsite
 `api-documenter-fire toc -i temp -p "/docs/reference/js/v9"`
 
-`-i` and `-p` are required parameters.
+`-i` and `-p` (`--host-path`) are required parameters.
 Use `-i` to specify the folder that contains api.json files.
 Use `-p` to specify the g3 path that contains the reference docs.
 

repo-scripts/api-documenter/src/cli/TocAction.ts

@@ -38,10 +38,10 @@ export class TocAction extends BaseAction {
     super.onDefineParameters();
 
     this._g3PathParameter = this.defineStringParameter({
-      parameterLongName: '--g3-path',
+      parameterLongName: '--host-path',
       parameterShortName: '-p',
-      argumentName: 'G3PREFIX',
-      description: `Specifies the path where the reference docs will be written to in g3.
+      argumentName: 'HOSTPATH',
+      description: `Specifies the path where the reference docs resides (e.g. g3).
                 Used to generate paths in the toc`
     });