#635 update installation instructions

README.md

@@ -235,7 +235,7 @@ For linking and running the game, the following libraries are also required:
 - ffmpeg 2.8 or older
 - sqlite
 - [bass](http://www.un4seen.com/bass.html)
-- some fonts like ttf-dejavu and ttf-freefont
+- some fonts like DejaVu
 - portaudio
 - lua 5.1 or 5.2 or 5.3
 - opencv if you want webcam support
@@ -254,7 +254,7 @@ For linking and running the game, the following libraries are also required:
 ##### Install prequisites
 ###### Linux/BSD
 Required libraries:
-- Debian/Ubuntu: `git automake make gcc fpc libsdl2-image-dev libavformat-dev libswscale-dev libsqlite3-dev libfreetype6-dev portaudio19-dev libportmidi-dev liblua5.3-dev libopencv-videoio-dev`
+- Debian/Ubuntu: `git automake make gcc fpc libsdl2-image-dev libavformat-dev libswscale-dev libsqlite3-dev libfreetype6-dev portaudio19-dev libportmidi-dev liblua5.3-dev libopencv-videoio-dev fonts-dejavu`
 - Fedora: `git automake make gcc fpc SDL2_image-devel ffmpeg-devel sqlite-devel freetype-devel portaudio-devel portmidi-devel lua-devel opencv-devel`
 - Archlinux: see the dependencies in the [ultrastardx-git](https://aur.archlinux.org/packages/ultrastardx-git) AUR package