Change README.md to LAST_MODIFICATION_README.md

The file name "README.md" has been changed to "LAST_MODIFICATION_README.md" in the parse_chat and overwrite_files functions. This change is reflected in the appending of the file name to the files list and the conditional check in the overwrite_files function. This is to ensure that the last modification readme file is correctly identified and updated. Also to allow to ask the LLM to update the README.md, if any in the project

gpt_engineer/chat_to_files.py

@@ -45,7 +45,7 @@ def parse_chat(chat) -> List[Tuple[str, str]]:
 
     # Get all the text before the first ``` block
     readme = chat.split("```")[0]
-    files.append(("README.md", readme))
+    files.append(("LAST_MODIFICATION_README.md", readme))
 
     # Return the files
     return files
@@ -106,7 +106,7 @@ def overwrite_files(chat, dbs):
 
     files = parse_chat(chat)
     for file_name, file_content in files:
-        if file_name == "README.md":
+        if file_name == "LAST_MODIFICATION_README.md":
             dbs.project_metadata["LAST_MODIFICATION_README.md"] = file_content
         else:
             dbs.workspace[file_name] = file_content