docs: update descriptions

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

@@ -20,7 +20,7 @@ limitations under the License.
 
 # Moment-Generating Function
 
-> [Gumbel][gumbel-distribution] distribution moment-generating function (MGF).
+> [Gumbel][gumbel-distribution] distribution [moment-generating function (MGF)][mgf].
 
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lib/node_modules/@stdlib/stats/base/dists/gumbel/pdf/README.md

@@ -93,7 +93,7 @@ y = pdf( 2.0, 8.0, 0.0 );
 
 #### pdf.factory( mu, beta )
 
-Partially applies `mu` and `beta` to create a reusable `function` for evaluating the PDF.
+Returns a function for evaluating the [probability density function][pdf] of a [Gumbel][gumbel-distribution] distribution with parameters `mu` (location parameter) and `beta` (scale parameter).
 
 ```javascript
 var mypdf = pdf.factory( 10.0, 2.0 );

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

@@ -173,7 +173,7 @@ logEachMap( 'p: %0.4f, μ: %0.4f, β: %0.4f, Q(p;μ,β): %0.4f', p, mu, beta, qu
 
 #### stdlib_base_dists_gumbel_quantile( p, mu, beta )
 
-Evaluates the [quantile-function][quantile-function] of a [gumbel-distribution][gumbel-distribution] with parameter probability `p`, location parameter `mu`, and scale parameter `beta`.
+Evaluates the [quantile function][quantile-function] for a [Gumbel][gumbel-distribution] distribution with parameters `mu` (location parameter) and `beta` (scale parameter).
 
 ```c
 double y = stdlib_base_dists_gumbel_quantile( 0.8, 0.0, 1.0 );

lib/node_modules/@stdlib/stats/base/dists/gumbel/skewness/README.md

@@ -158,10 +158,10 @@ logEachMap( 'μ: %0.4f, β: %0.4f, skew(X;μ,β): %0.4f', mu, beta, skewness );
 
 #### stdlib_base_dists_gumbel_skewness( mu, beta )
 
-Returns the skewness for a Gumbel distribution with location `mu` and scale `beta`.
+Returns the [skewness][skewness] for a [Gumbel][gumbel-distribution] distribution with location parameter `mu` and scale parameter `beta`.
 
 ```c
-double y = stdlib_base_dists_gumbel_skewness( 0.0, 1.0 );
+double out = stdlib_base_dists_gumbel_skewness( 0.0, 1.0 );
 // returns ~1.14
 ```
 

lib/node_modules/@stdlib/stats/base/dists/gumbel/variance/README.md

@@ -156,7 +156,7 @@ logEachMap( 'μ: %0.4f, β: %0.4f, Var(X;μ,β): %0.4f', mu, beta, variance );
 
 #### stdlib_base_dists_gumbel_variance( mu, beta )
 
-Returns the variance for a Gumbel distribution with location `mu` and scale `beta`.
+Returns the [variance][variance] for a [Gumbel][gumbel-distribution] distribution with location parameter `mu` and scale parameter `beta`.
 
 ```c
 double out = stdlib_base_dists_gumbel_variance( 0.0, 1.0 );