Cross-reference figure in-text (update ms_template.RMD)

[trashbirdecology]

Please add a note in the manuscript_template.Rmd on how to use in-text cross-ref for figures @

https://github.com/petrkeil/Blog/blob/master/2015_03_12_R_ms_template/manuscript_template.Rmd

[raerickson]

@trashbirdecology have you considered submitting a pull request with this feature?

[trashbirdecology]

Maybe two years ago :D