started a little bit of selection sorting algorithm

algorithms/lib/algorithms/sorting.rb

@@ -1,11 +1,27 @@
 module Algorithms
   class Sorting
-    def selection(a, n)
-    end
+    def selection(a)
+      # a is an Array
+      # from: https://www.tutorialspoint.com/data_structures_algorithms/selection_sort_algorithm.htm
+      # Step 1 − Set MIN to location 
+      # Step 2 − Search the minimum element in the list
+      # Step 3 − Swap with value at location MIN
+      # Step 4 − Increment MIN to point to next element
+      # Step 5 − Repeat until list is sorted
 
-    def bubble
-    end
+      a.each_with_index do |value, index|
+        # set current element as minimum
+        current_element = a[index]
+        next_element = a[index + 1]
 
+        if next_element.nil? == false && current_element > next_element
+          puts "Current Element: #{current_element}"
+          puts "Next Element: #{next_element}"
+
+        end
+      end
+
+    
     def insertion
     end