docs: remove extra comma

Signed-off-by: Philipp Burckhardt <[email protected]>

Author: Planeshifter

lib/node_modules/@stdlib/stats/incr/nanminmax/docs/repl.txt

@@ -1,7 +1,7 @@
 
 {{alias}}( [out] )
     Returns an accumulator function which incrementally computes a minimum and
-    maximum,, ignoring `NaN` values.
+    maximum, ignoring `NaN` values.
 
     If provided a value, the accumulator function returns an updated minimum and
     maximum. If not provided a value, the accumulator function returns the