Added diagram generation tool
Added diagram generation tool

We use 'seqdiag' for diagrams in the Sphinx docs

frznlogic/vagrant-cookbook,kursatkobya/vagrant-cookbook,Pelagicore/vagrant-cookbook,kursatkobya/vagrant-cookbook,tobsan/vagrant-cookbook,Pelagicore/vagrant-cookbook,frznlogic/vagrant-cookbook,Pelagicore/vagrant-cookbook,tobsan/vagrant-cookbook