Merge pull request ashutosh97#95 from luminousbeam/master

Added Acronym problem

Author: ashutosh97

Acronym/instructions.txt

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+Acronym
+Convert a phrase to its acronym.
+
+Techies love their TLA (Three Letter Acronyms)!
+
+Help generate some jargon by writing a program that converts a long name like Portable Network Graphics to its acronym (PNG).

Acronym/ruby_solution.rb

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+def abbreviate(string)
+  string_arr = string.scan(/\b\w/)
+  string_arr.join.upcase
+end
+
+
+# begin
+# >> abbreviate("Portable Network Graphics")
+# => "PNG"
+# >> abbreviate("Ruby on Rails")
+# => "ROR"
+# >> abbreviate("GNU Image Manipulation Program")
+# => "GIMP"