Flowchart start to the right

Tried this one on the web site:

```
st=>start: Start:>http://www.google.com[blank]
e=>end:>http://www.google.com
op1=>operation: My Operation
sub1=>subroutine: My Subroutine
cond=>condition: Is it fun?:>http://www.google.com
io=>inputoutput: catch something...

st(right)->op1(right)->cond
cond(yes, right)->sub1(right)->op1
cond(no)->io(right)->e
```

Start to op1 draws downwards, expected to draw to the right

Start by reproducing the supplied flowchart text on the project website and compare the rendered direction of the start-to-operation edge with the requested rightward layout. Trace the website's flowchart rendering entry point and layout handling for directional links. Done means the example renders the start-to-operation connection to the right without regressing the other links.

Scritto dal modello di indicizzazione a partire dal testo della issue.