chore: fix image in readme

chore: translate readme to english

Merge branch 'dev' into 'master'

Implement first versions of file browser, text viewer and image viewer

See merge request bohacfr2/apo-sem!1

Merge branch 'docs' into 'dev'

Add final documenttion

See merge request bohacfr2/apo-sem!2

docs: add manual to readme

docs: add basic readme