Create README.md

Author: Bedeho Mender

README.md

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+# protocol_wire-cpp
+C++ wire library for the JoyStream extension protocol, as specified [here](http://#).
+
+## Tools
+
+- [Conan](http://conan.io)
+- CMake
+
+## Use
+
+The easiest way to use the library in your own project is to use Conan. For more information, see the [readme](https://github.com/JoyStream/protocol_wire-conan)
+on the repo for this package recipe.
+
+## Build
+
+If you instead want to build it directly, then you first have to install the dependencies of this
+library using Conan, which you do by simply doing the following inside of your desired build directory
+
+`conan install <path>`
+
+where `<path>` is the path to protcol_wire source directory. Then, in the same directory, invoke CMake
+
+```
+cmake <path>
+cmake --build .
+```
+
+No path is required if you are building directly in the source directory.
+
+## Tests
+
+To build the tests, just pass option `build_tests=on` in the makefile generation step
+
+```
+cmake <path> -Dbuild_tests=on
+cmake --build .
+```
+
+and then you can run the resulting test binary `test_main` in the `bin` folder.
+
+## License and copyright
+WIP