Results 2 issues of Diego Rubert

``` graph TD A B A -- mylabel --> B ``` [view of example](https://mermaidjs.github.io/mermaid-live-editor/#/view/eyJjb2RlIjoiZ3JhcGggVERcblxuQVxuQlxuQSAtLSA8aT5hPC9pPiAtLT4gQlxuXG4iLCJtZXJtYWlkIjp7InRoZW1lIjoiZGVmYXVsdCJ9fQ)

mcxload won't work with sif files. This used to work just fine in older mcl versions. In the newer ones, a simple file like this: ``` A -> B:0.4 A...

bug
data formats
add test