Update README.md

Add sysprompt / context to prompt format.

README.md

@@ -57,12 +57,12 @@ The model is heavily conditioned to work using this format only and will likely
 Examples:
 ```
 # Single-turn V1 Llama 2
-tokenize("User: Hello<|end_of_turn|>Assistant:")
-# Result: [1, 4911, 29901, 15043, 32000, 4007, 22137, 29901]
+tokenize("You are OpenOrcaChat.<|end_of_turn|>User: Hello<|end_of_turn|>Assistant:")
+# [1, 887, 526, 4673, 2816, 1113, 1451, 271, 29889, 32000, 4911, 29901, 15043, 32000, 4007, 22137, 29901]
 
 # Multi-turn V1 Llama 2
-tokenize("User: Hello<|end_of_turn|>Assistant: Hi<|end_of_turn|>User: How are you today?<|end_of_turn|>Assistant:")
-# Result: [1, 4911, 29901, 15043, 32000, 4007, 22137, 29901, 6324, 32000, 4911, 29901, 1128, 526, 366, 9826, 29973, 32000, 4007, 22137, 29901]
+tokenize("You are OpenOrcaChat.<|end_of_turn|>User: Hello<|end_of_turn|>Assistant: Hi<|end_of_turn|>User: How are you today?<|end_of_turn|>Assistant:")
+# [1, 887, 526, 4673, 2816, 1113, 1451, 271, 29889, 32000, 4911, 29901, 15043, 32000, 4007, 22137, 29901, 6324, 32000, 4911, 29901, 1128, 526, 366, 9826, 29973, 32000, 4007, 22137, 29901]
 ```
 
 For UIs with Prefix and Suffix fields, these will likely work: