docs: Update README

docker/README.rst

@@ -5,10 +5,10 @@ Build Docker image
 ------------------
 
 In order to build OST image:
-```
-cd <OST ROOT>/docker
-(sudo) docker build --tag <TAG> .
-```
+
+.. code-block::
+    cd <OST ROOT>/docker
+    (sudo) docker build --tag <TAG> .
 
 One can chose any tag eg. ost.
 
@@ -16,15 +16,15 @@ Run script with OST
 -------------------
 
 In order to run OST script do:
-```
-(sudo) docker run --rm -v <PATH TO SCRIPT DIR>:/home <IMAGE NAME> /home/<SCRIPT NAME> [OPTIONS]
-```
+
+.. code-block::
+    (sudo) docker run --rm -v <PATH TO SCRIPT DIR>:/home <IMAGE NAME> /home/<SCRIPT NAME> [OPTIONS]
 
 Run GUI
 -------
 
 In order to run GUI do (tested on linux machine):
-```
-xhost +local:docker
-(sudo) docker run -ti --rm -e DISPLAY=$DISPLAY -v /tmp/.X11-unix:/tmp/.X11-unix --entrypoint dng <IMAGE NAME>
-```
\ No newline at end of file
+
+.. code-block::
+    xhost +local:docker
+    (sudo) docker run -ti --rm -e DISPLAY=$DISPLAY -v /tmp/.X11-unix:/tmp/.X11-unix --entrypoint dng <IMAGE NAME>