Small doc updates.

docs/src/concepts.rst

@@ -41,7 +41,8 @@ Modules can only see and reach (through PubSub messaging) other modules from sam
 Loop
 ----
 
-Libmodule offers an internal loop, started with modules_ctx_loop(). Each context has its own loop. |br|
+Libmodule offers an internal loop, started with modules_ctx_loop(); note that each context has its own loop. |br|
 Moreover, you can even easily integrate it into your own loop: modules_ctx_get_fd() will retrieve a pollable fd and POLLIN events will be raised whenever a new message is available. |br|
-Remember that right after modules_get_fd(), modules_ctx_dispatch() should be called, to dispatch initial "LoopStarted" messages to each module. |br|
+Remember that before starting your loop, modules_ctx_dispatch() should be called, to dispatch initial "LoopStarted" messages to each module. |br|
 Then, whenever POLLIN data is available on libmodule's fd, you only need to call modules_ctx_dispatch() again. |br|
+Finally, remember to close libmodule's fd retrieved through modules_ctx_get_fd(). |br|