Clarified Find mode description and updated README links

Author: minwork

README.md

@@ -14,6 +14,7 @@ Advanced implementation of well known operations:
   * [Has](https://minwork.gitbook.io/array/common-methods/has)
   * [Map](https://minwork.gitbook.io/array/manipulating-array/mapping)
   * [Filter](https://minwork.gitbook.io/array/manipulating-array/filtering)
+  * [Find](https://minwork.gitbook.io/array/manipulating-array/finding)
   * [Group](https://minwork.gitbook.io/array/manipulating-array/grouping)
   * [Sort](https://minwork.gitbook.io/array/manipulating-array/sorting)
   * [Check](https://minwork.gitbook.io/array/validating-array/check)

src/Arr.php

@@ -70,7 +70,7 @@ class Arr
      */
     const FIND_RETURN_KEY = 'key';
     /**
-     * Return all values (preserving original keys) of array elements matching find condition
+     * Return array of all values (preserving original keys) of array elements matching find condition
      */
     const FIND_RETURN_ALL = 'all';