Fix escaping of names in graphviz examples

dylanowen / mdbook-graphviz

Mozilla Public License 2.0

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Closed ChristianMoesl closed 3 years ago

ChristianMoesl commented 4 years ago

The Readme examples can not be used with graphviz. It will result in the following error:

syntax error in line 2 near 'graph'

These change properly escapes the name of the nodes in the graph