One-line Installation instructions in README

[johnnycrab]

First, thank you for this great project!

In the README for the one-line installation instruction, pip install -e git+https://github.com/jvkersch/pyconcorde, I think you should add #egg=pyconcorde, i.e. in full (the other one is old notation):

pip install -e git+https://github.com/jvkersch/pyconcorde#egg=pyconcorde.

Otherwise, pip will throw you the error
ERROR: Could not detect requirement name for 'git+https://github.com/jvkersch/pyconcorde', please specify one with #egg=your_package_name.

Thanks a lot!

[theblinkingusb]

Agreed - added #66 if @jvkersch would like to merge and/or has feedback

[jvkersch]

Thanks guys!