Update tokenizer_config.json

tokenizer_config.json

@@ -108,7 +108,7 @@
       "special": false
     },
     "128013": {
-      "content": "<think>",
+      "content": "<ser>",
       "lstrip": false,
       "normalized": false,
       "rstrip": false,
@@ -116,7 +116,7 @@
       "special": false
     },
     "128014": {
-      "content": "</think>",
+      "content": "</ser>",
       "lstrip": false,
       "normalized": false,
       "rstrip": false,