add info about features support (#1097)

README.md

@@ -13,6 +13,7 @@ Version 2.0 includes support for the core workflows of the following APIs:
 * [Data](https://developers.planet.com/docs/data/) - Search for imagery from Planet's data catalog.
 * [Orders](https://developers.planet.com/docs/orders/) - Process and download or deliver imagery.
 * [Subscriptions](https://developers.planet.com/docs/subscriptions/) - Set up a search to auto-process and deliver imagery.
+* [Features](https://developers.planet.com/docs/apis/features/) - Upload areas of interest to the Planet platform.
 
 After the initial 2.0 release there will be additional work to support the
 remaining Planet APIs: [basemaps](https://developers.planet.com/docs/basemaps/),

planet/sync/client.py

@@ -19,6 +19,7 @@ class Planet:
     `data`: for interacting with the Planet Data API.
     `orders`: Orders API.
     `subscriptions`: Subscriptions API.
+    `features`: Features API
 
     Quick start example:
     ```python
@@ -47,7 +48,7 @@ def __init__(self, session: Optional[Session] = None) -> None:
         self._session = session or Session()
         self._session._client.headers.update({
             "X-Planet-App": SYNC_CLIENT_X_PLANET_APP,
-            "User-Agent": f"planet-client-python/{__version__}/sync"
+            "User-Agent": f"planet-client-python/{__version__}/sync",
         })
 
         self.data = DataAPI(self._session)