Please update installation guide

[beenotung]

If I clone this projec then run the zeronet.py, it doesn't work.

Even after I run sudo pip install -r requirements.txt, It doesn't works.

beenotung:ZeroNet$ ./zeronet.py 
- Starting ZeroNet...
ERROR:root:Unhandled exception: No module named gevent
Traceback (most recent call last):
  File "./zeronet.py", line 18, in main
    import main
  File "/home/beenotung/local/opt/ZeroNet/src/main.py", line 9, in <module>
    import gevent
ImportError: No module named gevent
Traceback (most recent call last):
  File "./zeronet.py", line 91, in <module>
    main()
  File "./zeronet.py", line 64, in main
    traceback.print_exc(file=open(config.log_dir + "/error.log", "a"))
AttributeError: 'Config' object has no attribute 'log_dir'

Maybe related to #1056

[beenotung]

Solution:

sudo pip2 install -r requirements.txt

Note that it's using python 2.
I suggest to include a install script in the root folder, so people not familiar with python (2 v.s. 3) can get started easily.

[beenotung]

created this pull request: #1303

[jimenezfer]

Hi @beenotung , am curious about this output , is it not connecting to the tor network?

[sergei-bondarenko]

@jebuscraisp
It just tells you to install a Python module gevent.

[beenotung]

I wonder why the pull reuest is not accepted yet.
It works.