docs: add missing decimal

Signed-off-by: Athan <[email protected]>

Author: kgryte

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

@@ -314,7 +314,7 @@ int main( void ) {
     const int strideX = 2;
 
     // Compute the variance:
-    double v = stdlib_strided_dstdevch( N, 1, x, strideX );
+    double v = stdlib_strided_dstdevch( N, 1.0, x, strideX );
 
     // Print the result:
     printf( "sample standard deviation: %lf\n", v );