chore: pass correction as double in C docs

Author: aayush0325

lib/node_modules/@stdlib/stats/base/dvariancewd/README.md

@@ -242,7 +242,7 @@ Computes the [variance][variance] of a double-precision floating-point strided a
 ```c
 const double x[] = { 1.0, -2.0, 2.0 };
 
-double v = stdlib_strided_dvariancewd( 3, 1, x, 1 );
+double v = stdlib_strided_dvariancewd( 3, 1.0, x, 1 );
 // returns ~4.3333
 ```
 
@@ -264,7 +264,7 @@ Computes the [variance][variance] of a double-precision floating-point strided a
 ```c
 const double x[] = { 1.0, -2.0, 2.0 };
 
-double v = stdlib_strided_dvariancewd_ndarray( 3, 1, x, 1, 0 );
+double v = stdlib_strided_dvariancewd_ndarray( 3, 1.0, x, 1, 0 );
 // returns ~4.3333
 ```