docs[py]: Update docs for Py Client (#934)

* docs: increase clarity of pip extras and using oci+register method

Signed-off-by: syntaxsdev <sglinton@redhat.com>

* docs: update yr

Signed-off-by: syntaxsdev <sglinton@redhat.com>

* docs: update author for RTD footer

Signed-off-by: syntaxsdev <sglinton@redhat.com>

* docs: clarify oci registry

Signed-off-by: syntaxsdev <sglinton@redhat.com>

---------

Signed-off-by: syntaxsdev <sglinton@redhat.com>

Author: syntaxsdev

clients/python/README.md

@@ -38,6 +38,16 @@ This step is not required if you already installed the additional dependencies a
 ```
 pip install huggingface-hub
 ```
+#### Extras that can be installed
+```
+pip install model-registry[hf]
+```
+```
+pip install model-registry[s3]
+```
+```
+pip install model_registry[olot]
+```
 
 ## Basic usage
 
@@ -208,7 +218,8 @@ registered_model = client.upload_artifact_and_register_model(
 ```
 
 #### OCI-registry based storage
-
+First, you must ensure you are logged in the to appropriate OCI registry using
+`skopeo login`, `podman login`, or using another way of authenticating or subsequent lines below will fail.
 ```python
 oci_upload_params = OCIParams(
     base_image="busybox",
@@ -226,7 +237,7 @@ registered_model = client.upload_artifact_and_register_model(
 )
 ```
 
-Additionally, OCI-based storage supports multiple CLI clients to perform the upload. However, one of these clients must be available in the hosts PATH. **Ensure your host has either [skopeo](https://github.com/containers/skopeo) or [oras](https://github.com/oras-project/oras) installed and available.** 
+Additionally, OCI-based storage supports multiple CLI clients to perform the upload. However, one of these clients must be available in the hosts `$PATH`. **Ensure your host has either [skopeo](https://github.com/containers/skopeo) or [oras](https://github.com/oras-project/oras) installed and available.** 
 
 By default, `skopeo` is used to perform the OCI image download/upload.
 
@@ -321,12 +332,5 @@ To run the e2e tests you will need [kind](https://kind.sigs.k8s.io/) to be insta
 
 Check out our [recommendations on setting up your docker engine](https://github.com/kubeflow/model-registry/blob/main/CONTRIBUTING.md#docker-engine) on an ARM processor.
 
-### Extras
-
-Depending on your development flow, you need to install extra dependencies:
-
-```
-poetry install -E "olot"
-```
 
 <!-- github-only -->

clients/python/docs/conf.py

@@ -1,8 +1,8 @@
 """Sphinx configuration."""
 
 project = "model-registry"
-author = "Isabella Basso do Amaral"
-copyright = f"2023, {author}"
+author = "Model Registry Community"
+copyright = f"2025, {author}"
 html_theme = "furo"
 extensions = [
     "sphinx.ext.autodoc",  # support for automatic documentation