Update README.md

README.md

@@ -5,7 +5,7 @@ This is a client side search engine for use on static pages.
 
 It uses a pre-compiled search index to add a fulltext search to static HTML pages such as
 [github pages][] or offline API documentation. The index is built by a PHP script using a
-similar yet much more simplified and dump approach than the popular search enging [Lucene].
+similar yet much more simplified and dump approach than the popular search engine [Lucene].
 
 To see how it looks like, check out the [demo][].
 
@@ -34,3 +34,12 @@ Usage
 TODO.
 
 See [example.html](example.html) for an implementation.
+
+### Generate the index
+
+Using the command line tool:
+```
+vendor/bin/jsindex <path-to-your-html-files>
+```
+
+This will generate a `jssearch.index.js` file that you have to include in the Html header.