docs: update descriptions

Signed-off-by: Athan <[email protected]>

Author: kgryte

lib/node_modules/@stdlib/stats/base/ndarray/sztest2/README.md

@@ -93,8 +93,8 @@ The function has the following parameters:
     4.  a zero-dimensional ndarray specifying the alternative hypothesis.
     5.  a zero-dimensional ndarray specifying the significance level.
     6.  a zero-dimensional ndarray specifying the difference in means under the null hypothesis.
-    7.  a zero-dimensional ndarray specifying the known standard deviation of first one-dimensional input ndarray.
-    8.  a zero-dimensional ndarray specifying the known standard deviation of second one-dimensional input ndarray.
+    7.  a zero-dimensional ndarray specifying the known standard deviation of the first one-dimensional input ndarray.
+    8.  a zero-dimensional ndarray specifying the known standard deviation of the second one-dimensional input ndarray.
 
 </section>