v0.3.0

Changelog

404caba Handle broken references to files
8f68097 Store images and files separately
cbc5a87 Disable cgo in Docker container
7b86864 Update dependecies
cc3e7b6 Add missing dependencies to alpine buld container
5ce572f Simplify appendMedia signature
d882966 Avoid copy in for loops
d638e2b Remove atom constant
9b8212b Format convert_test
7fec9b7 Make markdown Resource types aware of representation
748e7b4 Extract hashAttr func
a3f8350 Use alpine builder image
18d1dc5 Refactor en-media tags parsing
de6e622 Discard assetsDir