grammatical fixes on chat_stores.md (#12012)

docs/module_guides/storing/chat_stores.md

 # Chat Stores
 
-A chat store serves as a centralized interface to store your chat history. Chat history is unique to other storage formats, since the order of messages is important to maintining an overall conversation.
+A chat store serves as a centralized interface to store your chat history. Chat history is unique compared to other storage formats, since the order of messages is important for maintaining an overall conversation.
 
-Chat stores can be organize sequences of chat messages by keys (like `user_ids` or other unique identifiable strings), and handle `delete`, `insert`, and `get` operations.
+Chat stores can organize sequences of chat messages by keys (like `user_ids` or other unique identifiable strings), and handle `delete`, `insert`, and `get` operations.
 
 ## SimpleChatStore
 
-The most basic chat store is `SimpleChatStore`, which stores messages in memory and saves to/from disk, or can be serlized and stored somewhere else.
+The most basic chat store is `SimpleChatStore`, which stores messages in memory and can save to/from disk, or can be serialized and stored elsewhere.
 
-Typically, you will insansiate a chat store and give it to a memory module. Memory modules that use chat stores will default to using `SimpleChatStore` if not provided.
+Typically, you will instantiate a chat store and give it to a memory module. Memory modules that use chat stores will default to using `SimpleChatStore` if not provided.
 
 ```python
 from llama_index.core.storage.chat_store import SimpleChatStore
@@ -49,7 +49,7 @@ loaded_chat_store = SimpleChatStore.parse_raw(chat_store_string)
 
 ## RedisChatStore
 
-Using `RedisChatStore`, you can store your chat history remotely, without having to worry abouyt manually persisting and loading the chat history.
+Using `RedisChatStore`, you can store your chat history remotely, without having to worry about manually persisting and loading the chat history.
 
 ```python
 from llama_index.storage.chat_store.redis import RedisChatStore