[doc] fixed typos in user guide

doc/user_guide.rst

@@ -2,7 +2,7 @@
  User guide
 ===========
 
-As the name suggest, this package makes heavy use of pytorch_, so make sure you have it installed on your environment. 
+As the name suggest, this package makes heavy use of PyTorch_, so make sure you have it installed on your environment. 
 It also relies on bob_ (and in particular for I/O and databases interfaces), so you may want to refer 
 to their respective documentation as well. In particular, the following assumes that you have a conda environment
 with bob installed (see `installation instructions <https://www.idiap.ch/software/bob/docs/bob/docs/stable/bob/doc/install.html>`_)
@@ -305,7 +305,7 @@ Your configuration file ``casia.py`` should look like:
 
 Then, you can lauch the trainin script (and leave it running for one week or so ...)
 
-  .. code-block:: bash
+.. code-block:: bash
   
   $ ./bin/train_cnn casia.py -vvv