Added running doctests inside tox

Signed-off-by: Maciej Kurc <mkurc@antmicro.com>

.gitignore

diff --git a/.gitignore b/.gitignore
index c8d50fc..5cce36f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -104,4 +104,3 @@
 .mypy_cache/
 
 *.sw*
-conda.tmp.yml

tox.ini

diff --git a/tox.ini b/tox.ini
index 2d6aad1..bfbc74c 100644
--- a/tox.ini
+++ b/tox.ini
@@ -17,13 +17,14 @@
     flake8
     pytest
 commands =
-    check-manifest --ignore tox.ini,tests,*.pyc
+    check-manifest --ignore tox.ini,tests,*.pyc,*.swp
     python --version
     # This repository uses a Markdown long_description, so the -r flag to
     # `setup.py check` is not needed. If your project contains a README.rst,
     # use `python setup.py check -m -r -s` instead.
     python setup.py check -m -s
     flake8 .
+    pytest --doctest-modules -vv v2x
     pytest -vv
 [flake8]
 exclude = .tox,*.egg,build,data