"pip install -e ..." no longer works

[zhengkaitu]

Seems that github updated the protocol some time in 2022, so this part of the README should be deprecated (?)

`$ pip install -e "git://github.com/connorcoley/rdchiral.git#egg=rdchiral"

Obtaining rdchiral from git+git://github.com/connorcoley/rdchiral.git#egg=rdchiral
Cloning git://github.com/connorcoley/rdchiral.git to ./src/rdchiral
Running command git clone --filter=blob:none -q git://github.com/connorcoley/rdchiral.git /home/nos/Desktop/sparse_images/src/rdchiral
fatal: remote error:
The unauthenticated git protocol on port 9418 is no longer supported.`

OpenRetro has some legacy code that installs rdchiral this way. Does "pip install rdchiral" suffice?