docs(readme): add usage guidance

Author: BobAnkh

README.md

@@ -4,4 +4,48 @@ This is the Python client SDK to interact with the Mitosis API. It provides a co
 
 See the [Mitosis documentation](https://docs.stack.rs/mitosis) and [Mitosis repository](https://github.com/stack-rs/mitosis) for more details.
 
-Use `uv add pynetmito` to add this package to your project.
+## Usage
+
+Install the package with pip
+
+```bash
+pip install pynetmito
+```
+
+Or if you are using [uv](https://docs.astral.sh/uv/), you can add it to your project with:
+
+```bash
+uv add pynetmito
+```
+
+Now let's see a simple example of how to use the SDK:
+
+```python
+from pynetmito import MitoHttpClient
+coordinator_addr = "http://127.0.0.1:5000" # The coordinator address of the mitosis backend service
+c = MitoHttpClient(coordinator_addr)
+c.connect(user="your-user-name", password="your-password")
+
+# Now you can use the client to submit tasks
+with open("orig.txt", "w") as f:
+    f.write("hello world")
+c.upload_attachment(Path("orig.txt"), key="some-remote-text-file/in-object-storage/log.txt")
+
+# Specify the task with attachment
+attachment = RemoteResourceDownload(
+    remote_file=RemoteResource.attachment("some-remote-text-file/in-object-storage/log.txt"), local_path=Path("test.txt")
+)
+task_spec = TaskSpec(args=["echo", "$MITO_RESOURCE/test.txt"], resources=[attachment], terminal_output=True)
+args = SubmitTaskReq(group_name=c.username, task_spec=task_spec)
+r = c.user_submit_task(args) # This will return a SubmitTaskResp object (with uuid to identify the task)
+res = c.get_task_by_uuid(r.uuid) # You can use the uuid to get the task status and result
+print(res)
+
+# To download the terminal output of the task
+c.download_artifact(
+    r.uuid,
+    content_type=ArtifactContentType.STD_LOG,
+    local_path=Path("new.txt"),
+)
+
+```