update README

Author: wusatosi

README.md

@@ -31,7 +31,7 @@ which dynamic memory allocations are undesired.
 
 #include <beman/inplace_vector/inplace_vector.hpp>
 
-using namespace beman::inplace_vector;
+using namespace beman;
 
 /**
  * Generates fibonacci sequence using inplace_vector.

examples/fibonacci.cpp

@@ -4,8 +4,7 @@
 
 #include <beman/inplace_vector/inplace_vector.hpp>
 
-template <typename T, std::size_t N>
-using inplace_vector = beman::inplace_vector<T, N>;
+using namespace beman;
 
 /**
  * Generates fibonacci sequence using inplace_vector.