Syntax
{{#mermaid:graph TD;
A-->B;
A-->C;
B-->D;
C-->D;
click A "http://lolita.dimap.ufrn.br/logicwiki/A"
click B "http://lolita.dimap.ufrn.br/logicwiki/B"
click C "http://lolita.dimap.ufrn.br/logicwiki/C"
click D "http://lolita.dimap.ufrn.br/logicwiki/D"
}}