Update README.md

Author: soblin

README.md

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 # matplotlibcpp17
 
-A C++ header-only plotting library based on pybind11 and matplotlib
+A C++ header-only library for matplotlib based on pybind
 
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-This project aims to replace [matplotlibcpp](https://github.com/lava/matplotlib-cpp) using [pybind11](https://github.com/pybind/pybind11) as backend.
+[matplotlibcpp17](https://github.com/soblin/matplotlibcpp17) is an yet another C++ library for matplotlib featuring more functionalities than matplotlibcpp.
 
 It is supposed to provide the user with almost full access to matplotlib features in C++, by implementing as many *wrapper classes* of matplotlib module as possible (like `axes::Axes`, `figure::Figure`). And its primary advantage over conventional matplotlibcpp is that the user can pass a variety of arguments as in the form of *args* and *kwargs* thanks to pybind11, without the need for coversion to `map<string, string>`, thus leading to more flexibility.