I'm not sure if this is the fault of the syntax file or not. I've tried in both NERDCommenter and vim-commentary to make comments in a slim template and both render the same (incorrect way).
= breadcrumb_to 'New Plan'
/* = breadcrumb_to 'New Plan' */
According to the docs, it should be (I believe)
/ = breadcrumb_to 'New Plan'
Let me know if I'm on the right track or if this is doesn't belong here. Thanks.
Commenting syntax works correctly with nerdCommenter master.