Readme updated

README.md

@@ -4,10 +4,12 @@ Prototype for a ROS2 implementation in pure Erlang.
 
 ## Requirements:
     Erlang OTP 23 as minimum
-    ROS2 foxy
-    Cyclone DDS
+    ROS2 galactic
 
-Note: current implementation has been tested only against cyclone dds.
+
+Note: 
+The current implementation has only been tested against Cyclone-dds.
+If you are using a different middleware for ROS2 you could experience crashes.
 
 ## Build
 
@@ -24,7 +26,7 @@ Note: current implementation has been tested only against cyclone dds.
     rebar3 shell --apps talker
     RMW_IMPLEMENTATION=rmw_cyclonedds_cpp ros2 run demo_nodes_py listener
 ### Turtle controller
-Write commands on the shell to send them to the turtle on screen.
+Write commands on the shell to send them to the turtle on the screen.
 
     # LAUNCH:
     rebar3 shell --apps turtle_controller

demos/minimal_service/src/minimal_service.erl

@@ -22,7 +22,7 @@ on_client_request(Pid, {_, R}) ->
     gen_server:call(Pid, {handle_request, R}).
 
 init(S) ->
-    Node = ros_context:create_node("minimal_server"),
+    Node = ros_context:create_node("minimal_service"),
 
     Service =
         ros_node:create_service(Node, example_interfaces_add_two_ints_srv, {?MODULE, self()}),

demos/parameters/src/parameters.erl

@@ -15,13 +15,14 @@
 start_link() ->
     gen_server:start_link(?MODULE, #state{}, []).
 
+% TODO: develop an interesting demo around parameter events and services
 init(_) ->
     Node = ros_context:create_node("parameter_test"),
 
     OtherNode = ros_context:create_node("second_node"),
 
     ok = ros_context:destroy_node(OtherNode),
-    
+
     {ok, #state{ros_node = Node}}.
 
 handle_call(_, _, S) ->