docs: install: Explicitly mention py3 packages
Aligns with below sections in the document. Isso is
py3-only.
@@ -39,10 +39,10 @@ package manager.
.. code-block:: sh
# for Debian/Ubuntu
- ~> sudo apt-get install python-setuptools python-virtualenv python-dev
+ $ sudo apt-get install python3-setuptools python3-virtualenv python3-dev
# Fedora/Red Hat
- ~> sudo yum install python-setuptools python-virtualenv python-devel
+ $ sudo yum install python3-setuptools python3-virtualenv python3-devel
The next steps should be done as regular user, not as root (although possible
but not recommended):
