First, craft a rune blade with some gravel

Then use it on stone to gather some blank runes. 

Either upgrade the blank runes, or use them as is and start getting enchantments on your stone tools, wood tools, and leather armor

More enchantments can be added with the config file

Support for more items can be added by shapeless datapack recipes

Example Runeword crafting.  It is Shapeless except the quantity and order of runes determines the enchantment