README.md in awesome_bot-1.15.0 vs README.md in awesome_bot-1.16.0

@@ -25,10 +25,11 @@
     -a, --allow [errors]             Status code errors to allow
         --allow-dupe                 Duplicate URLs are allowed
         --allow-ssl                  SSL errors are allowed
         --allow-redirect             Redirected URLs are allowed
         --allow-timeout              URLs that time out are allowed
+        --base-url [base url]        Base URL to use for relative links
     -d, --request-delay [seconds]    Set request delay
     -t, --set-timeout [seconds]      Set connection timeout
         --skip-save-results          Skip saving results
     -w, --white-list [urls]          Comma separated URLs to white list
 ```
@@ -80,9 +81,12 @@
 # speed up validation by setting a timeout of 5 seconds per link request and allowing timeouts
 
 $ awesome_bot README.md --allow 403,429
 # allow status code errors 403 and 429
 # --allow 301 would be similar to --allow-redirect
+
+$ awesome_bot README.md --base-url https://github.com/IDR/idr-notebooks/blob/master/
+# will check relative links using the base url provided
 ```
 
 ```shell
 (master) $ git branch
 * master