Remove references to _.

join.js

@@ -8,7 +8,6 @@ const nativeJoin = arrayProto.join;
  * Converts all elements in `array` into a string separated by `separator`.
  *
  * @static
- * @memberOf _
  * @since 4.0.0
  * @category Array
  * @param {Array} array The array to convert.
@@ -16,7 +15,7 @@ const nativeJoin = arrayProto.join;
  * @returns {string} Returns the joined string.
  * @example
  *
- * _.join(['a', 'b', 'c'], '~');
+ * join(['a', 'b', 'c'], '~');
  * // => 'a~b~c'
  */
 function join(array, separator) {