docs(url-param): update readme

README.md

@@ -103,7 +103,7 @@ service.
           [layer types](https://mapzen.com/documentation/search/autocomplete/#layers)
     -   `$0.sources` **[string](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String)?**  (optional, default `'gn,oa,osm,wof'`)
     -   `$0.text` **[string](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String)** query text
-    -   `$0.url` **[string](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String)?** optional URL to override Mapzen autocomplete endpoint
+    -   `$0.url` **[string](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String)?** optional URL to override Mapzen autocomplete endpoint (optional, default `'https://search.mapzen.com/v1/autocomplete'`)
 
 Returns **[Promise](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise)** A Promise that'll get resolved with the autocomplete result
 
@@ -123,7 +123,7 @@ service.
     -   `$0.size` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)?**  (optional, default `10`)
     -   `$0.sources` **[string](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String)?**  (optional, default `'gn,oa,osm,wof'`)
     -   `$0.text` **[string](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String)** The address text to query for
-    -   `$0.url` **[string](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String)?** optional URL to override Mapzen search endpoint
+    -   `$0.url` **[string](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String)?** optional URL to override Mapzen search endpoint (optional, default `'https://search.mapzen.com/v1/search'`)
 
 Returns **[Promise](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise)** A Promise that'll get resolved with search result
 
@@ -139,6 +139,6 @@ service.
     -   `$0.apiKey` **[string](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String)** The Mapzen API key
     -   `$0.format` **[boolean](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Boolean)** 
     -   `$0.point` **{lat: [number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number), lon: [number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)}** Point to reverse geocode
-    -   `$0.url` **[string](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String)?** optional URL to override Mapzen reverse endpoint
+    -   `$0.url` **[string](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String)?** optional URL to override Mapzen reverse endpoint (optional, default `'https://search.mapzen.com/v1/reverse'`)
 
 Returns **[Promise](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise)** A Promise that'll get resolved with reverse geocode result