chore: update retrun values

Author: Neerajpathak07

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

@@ -190,7 +190,7 @@ Computes the arithmetic mean of a double-precision floating-point strided array,
 const double x[] = { 1.0, 2.0, 0.0/0.0, 3.0, 0.0/0.0, 4.0, 5.0, 6.0, 0.0/0.0, 7.0, 8.0, 0.0/0.0 };
 
 double v = stdlib_strided_dnanmeanors( 6, x, 2 );
-// returns 4.66
+// returns 4.6667
 ```
 
 The function accepts the following arguments:
@@ -211,7 +211,7 @@ Computes the arithmetic mean of a double-precision floating-point strided array,
 const double x[] = { 1.0, 2.0, 0.0/0.0, 3.0, 0.0/0.0, 4.0, 5.0, 6.0, 0.0/0.0, 7.0, 8.0, 0.0/0.0 };
 
 double v = stdlib_strided_dnanmeanors( 6, x, 2, 0 );
-// returns 4.66
+// returns 4.6667
 ```
 
 The function accepts the following arguments: