Update README.md

Signed-off-by: Karan Anand <[email protected]>

Author: anandkaranubc

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

@@ -158,7 +158,7 @@ for ( i = 0; i < 100; i++ ) {
 #include "stdlib/stats/base/dists/degenerate/mgf.h"
 ```
 
-#### stdlib_base_dists_degenerate_mgf( mu )
+#### stdlib_base_dists_degenerate_mgf( t, mu )
 
 Evaluates the moment-generating function (MGF) for a degenerate distribution centered at `mu`.