Update dot.snippets
Update README.md
Added cmds for neato, fdp, ...
doc: mappings use <LocalLeader> prefix, not <Leader>

If you have changed the mapleader/<Leader> key in vim, the plugin
mappings do not work. This is because the plugin actually uses
<LocalLeader>, not <Leader> like the documentation says. Fix
documentation.
doc: fix tex2dot => dot2tex typos
Merge pull request #7 from bjornfor/doc-fixes

Doc fixes
Add :GraphvizInteractive command

:GraphvizInteractive opens a dot viewer that immediately redraws the
image when the source file is saved. This is done with "dot -Txlib", the
same command that the vimdot script from the graphviz package uses.

Tested on Linux (ok) and Windows (not ok; graphviz isn't built with xlib
support).
Merge pull request #8 from bjornfor/graphviz-interactive

Add :GraphvizInteractive command
Added support for UltiSnips
Added support for UltiSnips