Update README.md to address readme comments

Author: mcbarton

README.md

@@ -44,7 +44,8 @@ source activate  "xeus-cpp"
 ```
 We will now install the dependencies needed to compile xeux-cpp from source within this environment by executing the following
 ```bash
-mamba install notebook cmake cxx-compiler xeus-zmq nlohmann_json=3.11.3 jupyterlab CppInterOp cpp-argparse pugixml doctest -c conda-forge
+micromamba create -f environment-dev.yml
+micromamba install jupyterlab -c conda-forge
 ```
 Now you can compile the kernel from the source by executing (replace `$CONDA_PREFIX` with a custom installation prefix if need be)
 ```bash
@@ -185,6 +186,12 @@ http://xeus-cpp.readthedocs.io
 - [argparse](https://github.com/p-ranav/argparse)
 - [CppInterOp](https://github.com/compiler-research/CppInterOp)
 
+| `xeus-cpp` | `xeus-zmq`      | `CppInterOp` | `pugixml` | `cpp-argparse`| `nlohmann_json` |
+|------------|-----------------|--------------|-----------|---------------|-----------------|
+|  main      |  3.1.0 | 1.7.0      | 1.15    | 3.2    | 3.12.0   |
+
+## Contributing
+
 See [CONTRIBUTING.md](./CONTRIBUTING.md) to know how to contribute and set up a
 development environment.