Add information about Docker

Dockerfile.ubuntu

@@ -0,0 +1,14 @@
+FROM ubuntu
+RUN apt-get update && apt-get install -y git gcc make software-properties-common vim tightvncserver openssh-server
+RUN add-apt-repository -y ppa:allegro/5.2
+RUN apt-get update && apt-get install -y liballegro5-dev
+RUN apt-get install -y fluxbox
+RUN apt-get install -y xterm
+RUN apt-get install -y gradle libsdl2-dev
+RUN apt-get install -y libgtk-3-dev
+RUN mkdir -p ~/.vnc
+RUN echo "fluxbox &"> ~/.vnc/xstartup
+RUN chmod u+x ~/.vnc/xstartup
+EXPOSE 22
+EXPOSE 5901
+

README.md

@@ -2,7 +2,22 @@ FI MUNI - C and C++ examples
 ============================
 
 Examples related to talks at FI MUNI.
-Georgik's blog: http://georgik.sinusgear.com
+Georgik's blog: https://georgik.rocks
+
+Docker image for running examples
+---------------------------------
+
+It's possible to run most of examples in Docker container:
+
+    docker build -t fedora-devel -f Dockerfile.fedora .
+    docker run -p 5901:5901 -v /path-to-cpp-examples:/opt/cpp-examples -it fedora-devel /bin/bash
+
+Applications with UI could be viewed via VNC viewer.
+Run following command in running container:
+
+    vncserver
+
+Then connect your VNC client to localhost:5901.
 
 Allegro
 -------