add minN and maxN

snippets/maxN.md

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+### maxN
+
+Returns the `n` maximum elements from the provided array. If `n` is greater than or equal to the provided array's length than return the original array(sorted in descending order).
+
+Sort's the array's shallow copy in descending order and returns the first n elements
+
+Skip the second argument to get a single element(in the form of a array)
+``` js
+const maxN = (arr,n = 1) => {
+  let rra = [...arr].sort((a,b) => b-a)
+  return rra.splice(0,n)
+}
+```
+
+``` js
+maxN([1,2,3]); // [3]
+maxN([1,2,3],2); // [3,2]
+maxN([1,2,3],4); // [3,2,1]
+```

snippets/minN.md

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+### minN
+
+Returns the `n` minimum elements from the provided array. If `n` is greater than or equal to the provided array's length than return the original array(sorted in ascending order).
+
+Sort's the array's shallow copy in ascending order and returns the first n elements
+
+Skip the second argument to get a single element(in the form of a array)
+``` js
+const minN = (arr,n = 1) => {
+  let rra = [...arr].sort((a,b) => a-b)
+  return rra.splice(0,n)
+}
+```
+``` js
+maxN([1,2,3]); // [1]
+maxN([1,2,3],2); // [1,2]
+maxN([1,2,3],4); // [1,2,3]
+```