Work with markdown files in GTK4

Billy Barrow e92bd2d16b Add license and USM manifest 1 mesiac pred
src c903563b3d Fix memory leak 3 rokov pred
usm-scripts e92bd2d16b Add license and USM manifest 1 mesiac pred
.gitignore ab05239787 Initial Commit 3 rokov pred
LICENSE e92bd2d16b Add license and USM manifest 1 mesiac pred
MANIFEST.usm e92bd2d16b Add license and USM manifest 1 mesiac pred
test.md fb772b20a9 Embedded widget improvements 3 rokov pred