Fix punctuation

Author: kgryte

lib/node_modules/@stdlib/array/complex64/README.md

@@ -790,7 +790,7 @@ var z = arr.get( [ 0.0, 0.0 ], 5 );
 
 A few notes:
 
--   If `i` is out-of-bounds, the method throws an error;
+-   If `i` is out-of-bounds, the method throws an error.
 -   If a target array cannot accommodate all values (i.e., length of source array plus `i` exceeds the target array length), the method throws an error.
 -   If provided a [typed array][mdn-typed-array] which shares an [`ArrayBuffer`][mdn-arraybuffer] with the target array, the method will intelligently copy the source range to the destination range.