Update README.md

README.md

@@ -17,9 +17,9 @@ MultiPatch is stored in `jsonl` format. Each line corresponds to one CVE and con
   "patches": [
     {
       "commit_url": "URL of the fix commit, type: str",
-      "diff_code": "the hash value of the parent commit, type: str",
-      "owner": "owner of the repo, type: str", 
-      "repo_name": "repo name, type: str", 
+      "diff_code": "the diff code of the patch, type: str",
+      "owner": "owner id of the repository, type: str", 
+      "repo_name": "the repository name, type: str", 
       "commit_message": "commit message, type: str"
     }
   ]