Update pow.md

Corrected the description, and content of the pow function, as well as updated with a better code, also fixed the line length issue in pow.md

Author: gspagare

docs/builtin/pow.md

@@ -12,10 +12,12 @@ Python pow() built-in function
     From the <a target="_blank" href="https://docs.python.org/3/library/functions.html#pow">Python 3 documentation</a>
   </base-disclaimer-title>
   <base-disclaimer-content>
-   The pow() function returns the power of a number. It takes two or three arguments:
-    pow(base, exp): Returns base raised to the power of exp (i.e., base ** exp).
-    pow(base, exp, mod): Returns (base ** exp) % mod (useful for modular arithmetic).
-    If the optional mod argument is present, the result is computed more efficiently than base ** exp % mod.
+   The pow() function returns the power of a number.
+    It takes two or three arguments:
+    pow(base, exp): Returns base raised to the power of exp (base ** exp).
+    pow(base, exp, mod): Returns (base ** exp) % mod (for modular arithmetic).
+    If the optional mod argument is present, the result is computed more 
+    efficiently than base ** exp % mod.
   </base-disclaimer-content>
 </base-disclaimer>