init Adapter

adapter/Adapter.cpp

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+/*
+ * C++ Design Patterns: Adapter
+ * Author: Jakub Vojvoda [github.com/JakubVojvoda]
+ * 2016
+ *
+ * Source code is licensed under MIT licence
+ * (for more details see LICENCE)
+ * 
+ */
+
+#include <iostream>
+
+int main()
+{
+
+  return 0;
+} 

adapter/README.md

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+## Adapter
+
+Convert the interface of a class into another interface clients expect.
+Adapter lets classes work together that couldn't otherwise because of
+incompatible interfaces. 
+
+### When to use
+
+* you want to use an existing class, and its interface does not match the one you need
+* you want to create a reusable class that cooperates with classes that don't necessarily have compatible interfaces
+