DOC: Fix a couple of typos (#2817)

Author: Paleski

doc/source/models/model_abilities/multimodal.rst

@@ -154,7 +154,7 @@ Chat with audio
 
     from xinference.client import Client
 
-    client = Client("http://<XINFERENCE_HOST>:<XINFERENCE_HOST>")
+    client = Client("http://<XINFERENCE_HOST>:<XINFERENCE_PORT>")
     model = client.get_model(<MODEL_UID>)
 
     messages = [

doc/source/models/model_abilities/rerank.rst

@@ -43,7 +43,7 @@ We can try Rerank API out either via cURL, OpenAI Client, or Xinference's python
 
     from xinference.client import Client
 
-    client = Client("http://<XINFERENCE_HOST>:<XINFERENCE_HOST>")
+    client = Client("http://<XINFERENCE_HOST>:<XINFERENCE_PORT>")
     model = client.get_model(<MODEL_UID>)
 
     query = "A man is eating pasta."