array-lc-221: Introduced README fo rthe problem

suhasdotcom · suhasdotcom · commit fd881330a05e · 2024-02-14T16:09:03.000+05:30
diff --git a/LeetCode/221/README.md b/LeetCode/221/README.md
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+# [LeetCode-221](https://leetcode.com/problems/maximal-square/): Minimal Square Problem
+
+### Instinct:
+1) Linear search the array (matrix) for max square size if square sizes are already available on every cell. This is O(n) operation where n=row*col.
+2) Augment the array to store the adjacent following square sizes too.
+
