spelling: occurrence (#248)

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>
Co-authored-by: Josh Soref <jsoref@users.noreply.github.com>

Author: jsoref

docs/3.10.1.html

@@ -941,7 +941,7 @@ <h3 id="uniq"><a href="#uniq" class="fa fa-link"></a><code>_.uniq(array, [isSort
 <p><a href="https://github.com/lodash/lodash/blob/3.10.1/lodash.js#L5612">source</a> <a href="https://www.npmjs.com/package/lodash.uniq">npm package</a></p>
 <p>Creates a duplicate-free version of an array, using
 <a href="http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero"><code>SameValueZero</code></a>
-for equality comparisons, in which only the first occurence of each element
+for equality comparisons, in which only the first occurrence of each element
 is kept. Providing <code>true</code> for <code>isSorted</code> performs a faster search algorithm
 for sorted arrays. If an iteratee function is provided it&apos;s invoked for
 each element in the array to generate the criterion by which uniqueness