Update the guide for pyfaust install in virtual environments.

Thanks to Ewen Camberlein for his remarks.

gen_doc/install_pyfaust_in_venv.md

@@ -16,17 +16,20 @@ Second, you need to enable the virtual environment:
 	C:\> call .\test_pyfaust-3.6\Scripts\activate
 
 Then, if all worked correctly you must see the test_pyfaut-3.6 prompt of your virtual environment.
+
 It remains now to install pyfaust in this environment.
 
 	$ pip install pyfaust-*.whl
 
 All the dependencies will be downloaded and installed by the command above.
 
-You can launch a test python command to validate the installation:
+You can launch this python command to validate the installation:
 
 	$ python -c 'from pyfaust import version; print(version())'
 
-As as result, you should see the version of pyfaust installed if all went properly.
+As a result, you should see the version of pyfaust installed if all went properly.
+
+\note In the virtual environment python is necessarily python version 3 (because the creation was made through python3 above).
 
 Python 2.7.15+
 =============
@@ -35,13 +38,13 @@ You need at first to install virtualenv:
 
 	$ pip install virtualenv
 
-NOTE: take care to use the good version of pip (corresponding to the python 2.7 version you want use).
+\note Take care to use the good version of pip (corresponding to the python 2.7 version you want to use).
 
 Then you can create your python 2.7 virtual environment:
 
 	$ virtualenv test_pyfaust-2.7
 
-The next is all the same as for python 3, you enter your virtual env.:
+The next is all the same as for python 3, you enter the virtual env.:
 
 	$ source ./test_pyfaust-2.7/bin/activate
 
@@ -61,8 +64,8 @@ And finally launch the version test command to check the whole process:
 Anaconda
 ========
 
-Within Anaconda you can also create virtual environments and use pyfaust into it. It's quite similar to the Python way described previous sections. For that purpose you'll use the command conda create.
+Within Anaconda you can also create virtual environments and use pyfaust into it. It's quite similar to the Python way described in previous sections. For that purpose you'll use the command conda create.
 
 Please rely on the documentation here: https://conda.readthedocs.io/en/latest/
 
-or for more details here:  https://conda.io/docs/commands/conda-create.html
+Or for more details about this specific command please look here: [conda-create](https://conda.io/projects/conda/en/latest/commands/create.html)