Fix some outdated info in docs

Author: JWCook

docs/user_guide/advanced.md

@@ -30,8 +30,7 @@ By default most API requests are cached according to `Cache-Control` headers sen
 similar to browser behavior. This significantly reduces rate-limit and bandwidth usage for repeat requests.
 
 Typically responses are cached for a few minutes, but some
-infrequently-changing data (like taxa and places) are cached for longer periods, and some more
-frequently-changing data (like observations) are not cached at all.
+infrequently-changing data (like taxa and places) are cached for longer periods.
 
 You can change any of this behavior using {py:class}`.ClientSession`.
 For example, to cache all requests for 1 day:
@@ -94,7 +93,7 @@ Similarly, if you are seeing intermittent non-timeout errors due to server issue
 the number of times to retry failed requests (default: 5):
 ```python
 >>> from pyinaturalist import ClientSession
->>> session = ClientSession(retries=7)
+>>> session = ClientSession(max_retries=7)
 ```
 
 ## Rate Limiting

docs/user_guide/client.md

@@ -10,6 +10,7 @@ In addition to the lower-level API wrapper functions, pyinaturalist provides {py
 All API calls are available as methods on {py:class}`.iNatClient`, grouped by resource type. For example:
 * Annotation requests: {py:class}`iNatClient.annotations <.AnnotationController>`
 * Identification requests: {py:class}`iNatClient.identifications <.IdentificationController>`
+* Observation field requests: {py:class}`iNatClient.observation_fields <.ObservationFieldController>`
 * Observation requests: {py:class}`iNatClient.observations <.ObservationController>`
 * Place requests: {py:class}`iNatClient.places <.PlaceController>`
 * Project requests: {py:class}`iNatClient.projects <.ProjectController>`
@@ -108,7 +109,7 @@ See :py:class:`.ClientSession` and :ref:`advanced` for details on these settings
 
 `iNatClient` will accept any arguments for `ClientSession`, for example:
 ```py
->>> client = iNatClient(per_minute=50, expire_after=3600, timeout=30, retries=3)
+>>> client = iNatClient(per_minute=50, expire_after=3600, timeout=30, max_retries=3)
 ```
 
 Or you can provide your own session object:

docs/user_guide/general.md

@@ -179,7 +179,7 @@ And they can be converted back to a JSON dict if needed:
 json_observations = [obs.to_dict() for obs in observations]
 ```
 
-In a future release, these models will be fully integrated with API query functions. To preview these features, see {ref}`api-client`.
+These models are fully integrated with the {py:class}`.iNatClient` interface, which returns typed model objects and is the recommended way to use pyinaturalist. See {ref}`api-client` for more details.
 
 ## API Recommended Practices
 See [API Recommended Practices](https://www.inaturalist.org/pages/api+recommended+practices)