add readme for minimumElementInAnArray in readme

Just testing out some features, learning the markdown

Author: kotAPI

Arrays and Strings/README.md

@@ -0,0 +1,6 @@
+# Arrays and Strings
+
+#### 1. [Return minimum Element In an Array (minimumElementInAnArray)](minimumElementInAnArray.cpp)
+
+> Write an algorithm that accepts an array of `'n'` length , finds the minimum element in it and returns it. 
+