Update docs to include file upload python example (tensorlakeai#283)

* update filter name on docs

* update docs

docs/docs/getting_started.md

@@ -64,13 +64,17 @@ Data Repositories are logical buckets that store content. Indexify starts with a
  ])
  ```
 
-#### You could upload files to Indexify also
+#### You can also upload files to Indexify
 === "curl"
  ```
  curl -v http://localhost:8900/repositories/default/upload_file \
  -F "files=@kd.txt"
  ```
-
+=== "python"
+ ```python
+ repo = client.get_repository("default")
+ repo.upload_file("kd.txt")
+ ```
 #### Look at the metadata of the content which has been ingested 
 Sometimes you might want to read all the metadata of the content for use in another application or debugging.
 === "curl"
@@ -331,7 +335,7 @@ Sometimes you might want to restrict the content from a data repository that's e
  -d '{"documents": [ 
   {"text": "The Cayuga was launched in 2245.", 
   "metadata": 
-  {"url": "https://memory-alpha.fandom.com/wiki/USS_Cayuga"}
+  {"source": "https://memory-alpha.fandom.com/wiki/USS_Cayuga"}
   }
   ]}' 
  ```
@@ -341,7 +345,7 @@ Sometimes you might want to restrict the content from a data repository that's e
  repo.add_documents([
   {"text": "The Cayuga was launched in 2245.", 
   "metadata": 
-  {"url": "https://memory-alpha.fandom.com/wiki/USS_Cayuga"}
+  {"source": "https://memory-alpha.fandom.com/wiki/USS_Cayuga"}
   }
  ])
  ```

sdk-py/indexify/repository.py

@@ -102,7 +102,6 @@ def upload_file(self, path: str):
  files={"file": f},
  )
  response.raise_for_status()
- return response.json()
 
  @classmethod
  def get(cls, name: str, service_url: str = DEFAULT_SERVICE_URL) -> "Repository":