Update README.md

README.md

@@ -25,4 +25,14 @@ solve for 'x' in the equation 2x + 5 = 11?
  "parameters": {"equation": {"description": "The equation to solve. The format is 'a*x + b = c'.
 For example, '5x + 2 = 10' or '3x - 7 = 1'.", "type": "str"}, "operation": {"description": "The operation (add, sub, etc.) to perform the solving.",
 "type": "str, optional"}, "variable": {"description": "The variable to solve for. Defaults to 'x' if not provided.", "default": "x"}}}]
-```
+```
+
+```
+What is the volume of a sphere with a radius of 6 cm?
+```
+
+```py
+[{"name": "volume_of_sphere", "description": "Calculates the volume of a sphere given its radius using the formula (4/3)πr³.",
+"parameters": {"radius": {"description": "The radius of the sphere.", "type": "int"}}}]
+```
+