Update README.md

README.md

@@ -38,10 +38,12 @@ Octopus-V4-3B, an advanced open-source language model with 3 billion parameters,
 
 ## Example Use Cases
 
+```text
+Query: Tell me the result of derivative of x^3 when x is 2?
 
-<p align="center" width="100%">
-<a><img src="tool-usage.png" alt="ondevice" style="width: 80%; min-width: 300px; display: block; margin: auto;"></a>
-</p>
+# <nexa_4> represents the math gpt.
+Response: <nexa_4> ('Determine the derivative of the function f(x) = x^3 at the point where x equals 2, and interpret the result within the context of rate of change and tangent slope.')<nexa_end>
+```
 
 You can run the model on a GPU using the following code. 
 ```python