docs: fix string interpolation

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---

Author: kgryte

lib/node_modules/@stdlib/stats/base/dists/kumaraswamy/quantile/README.md

@@ -148,7 +148,7 @@ var p = uniform( 10, 0.0, 1.0 );
 var a = uniform( 10, EPS, 5.0 );
 var b = uniform( 10, EPS, 5.0 );
 
-logEachMap( 'p: %d, a: %d, b: %d, Q(p;a,b): %d', p, a, b, quantile );
+logEachMap( 'p: %0.4f, a: %0.4f, b: %0.4f, Q(p;a,b): %0.4f', p, a, b, quantile );
 ```
 
 </section>

lib/node_modules/@stdlib/stats/base/dists/kumaraswamy/quantile/examples/index.js

@@ -27,4 +27,4 @@ var p = uniform( 10, 0.0, 1.0 );
 var a = uniform( 10, EPS, 5.0 );
 var b = uniform( 10, EPS, 5.0 );
 
-logEachMap( 'p: %d, a: %d, b: %d, Q(p;a,b): %d', p, a, b, quantile );
+logEachMap( 'p: %0.4f, a: %0.4f, b: %0.4f, Q(p;a,b): %0.4f', p, a, b, quantile );