fix typo

Author: gavinr-maps

slides/index.html

@@ -172,7 +172,7 @@ <h2 style="text-align: left">Deployment</h2>
             1. Build the Experience with your custom widgets
             2. Download as ZIP (see below)
             3. Unzip files
-            4. If there is any private content, add <code style="background-color: grey;">clientId/</code> to <code style="background-color: grey;">cdn/** app-string **/config.json/</code>
+            4. If there is any private content, add <code style="background-color: grey;">clientId/</code> to <code style="background-color: grey;">cdn/** app-string **/config.json</code>
             5. Host the files on a web server
 
             ![](img/download.png)