Поправлен readme

docs/omnireader.ru/README.md

@@ -37,6 +37,7 @@ sudo -u www-data tar xvf calibre-5.5.0-x86_64.txz -C /home/liberama/data/calibre
 sudo apt install rar
 sudo apt install libreoffice
 sudo apt install poppler-utils
+sudo apt install djvulibre-bin
 ```
 
 ### nginx, server config