prompt tweaks, retry on httpx.ReadTimeout

aider/coders/base_coder.py

@@ -432,7 +432,7 @@ class Coder:
         if self.abs_fnames:
             files_content = self.gpt_prompts.files_content_prefix
             files_content += self.get_files_content()
-            files_reply = "Ok, I will propose edits to those files to complete your request."
+            files_reply = "Ok, any changes I propose will be to those files."
         else:
             files_content = self.gpt_prompts.files_no_full_files
             files_reply = "Ok."

aider/prompts.py

@@ -17,7 +17,7 @@ undo_command_reply = (
     " why the changes were reverted."
 )
 
-added_files = "I added these *read-write* files: {fnames}"
+added_files = "I added these files to the chat: {fnames}"
 
 
 run_output = """I ran this command:

aider/sendchat.py

@@ -28,6 +28,7 @@ def should_giveup(e):
     (
         httpx.ConnectError,
         httpx.RemoteProtocolError,
+        httpx.ReadTimeout,
         litellm.exceptions.APIConnectionError,
         litellm.exceptions.APIError,
         litellm.exceptions.RateLimitError,