svg files seen as raw are interpreted as texts and not images
See the difference between https://bitbucket.org/fluiddyn/fluiddyn/raw/default/doc/logo.svg (an image) and https://foss.heptapod.net/fluiddyn/fluiddyn/raw/branch/default/doc/logo.svg (text).
Thus, links towards svg files in Heptapod are not rendered correctly:
![FluidDyn logo from bitbucket](https://bitbucket.org/fluiddyn/fluiddyn/raw/default/doc/logo.svg)
gives:
But ![FluidDyn logo from heptapod](https://foss.heptapod.net/fluiddyn/fluiddyn/raw/branch/default/doc/logo.svg)
gives
The problem does not seem to be associated with the file, for example it is reproducible with https://foss.heptapod.net/heptapod/slides/2020-FOSDEM/blob/branch/default/octobus+clever.svg, and ![FluidDyn logo heptapod](https://foss.heptapod.net/heptapod/slides/2020-FOSDEM/raw/branch/default/octobus+clever.svg)
gives: