Updated tokenizer with special tokens for a chat template

tokenizer.json

@@ -32,7 +32,7 @@
     },
     {
       "id": 3,
-      "content": "<extra_id_0>",
+      "content": "<|im_start|>",
       "single_word": false,
       "lstrip": false,
       "rstrip": false,
@@ -41,7 +41,7 @@
     },
     {
       "id": 4,
-      "content": "<extra_id_1>",
+      "content": "<|im_end|>",
       "single_word": false,
       "lstrip": false,
       "rstrip": false,
@@ -265,8 +265,8 @@
       "<unk>": 0,
       "<s>": 1,
       "</s>": 2,
-      "<extra_id_0>": 3,
-      "<extra_id_1>": 4,
+      "<|im_start|>": 3,
+      "<|im_end|>": 4,
       "<extra_id_2>": 5,
       "<extra_id_3>": 6,
       "<extra_id_4>": 7,