Update README.md

Author: Richard Smith

README.md

@@ -22,7 +22,7 @@ the ability to search for keywords across all properties with more complex queri
 | ----------- | ------- | ------ |
 | `/search?q=sentinel` | Free-text query against all properties | This will search for any matching items where `properties.*` CONTAINS `sentinel` |
 | `/search?q=sat:orbit_state:ascending` | Free-text query against specific property | This will search for any matching items where `properties.sat:obit_state` CONTAINS `ascending` |
-| `/search?q=climate model` | Free-text search using exact | This will search for any matching items where `properties.*` CONTAINS the exact phrase `"climate model"` |
+| `/search?q="climate model"` | Free-text search using exact | This will search for any matching items where `properties.*` CONTAINS the exact phrase `"climate model"` |
 |`/search?q=climate model`| Using `OR` term match (**Default**) | This will search for any matching items where `properties.*` CONTAINS `climate` OR `model`|
 |`/search?q=climate+model`| Using `AND` term match | This will search for any matching items where `properties.*` CONTAINS `climate` AND `model`|