chore: update variable order

Co-authored-by: Philipp Burckhardt <[email protected]>
Signed-off-by: Shabareesh Shetty <[email protected]>

Author: ShabiShett07

lib/node_modules/@stdlib/stats/base/dists/beta/mgf/README.md

@@ -237,9 +237,9 @@ static double random_uniform( const double min, const double max ) {
 }
 
 int main( void ) {
-    double t;
     double alpha;
     double beta;
+    double t;
     double y;
     int i;
     for ( i = 0; i < 25; i++ ) {