docs: update description

Signed-off-by: Philipp Burckhardt <pburckhardt@outlook.com>

Author: Planeshifter

lib/node_modules/@stdlib/stats/base/dists/pareto-type1/mean/include/stdlib/stats/base/dists/pareto-type1/mean.h

@@ -27,7 +27,7 @@ extern "C" {
 #endif
 
 /**
-* Evaluates the mean for a Pareto Type I distribution with shape parameter `alpha` and scale parameter `beta`.
+* Returns the mean for a Pareto Type I distribution with shape parameter `alpha` and scale parameter `beta`.
 */
 double stdlib_base_dists_pareto_type1_mean( const double alpha, const double beta );