Update README

Signed-off-by: Rahix <rahix@rahix.de>

README.md

@@ -87,7 +87,7 @@ bc:register{
 
 ### `BaseControl:finalize([waits], [timeout])`
 After creating a new base-controller, it will not immediately announce its data
-into the network.  It will first acuumulate local nouns and verbs and then send
+into the network.  It will first acumulate local nouns and verbs and then send
 them out in one batch.  This happens when you call `finalize`.
 
 Finalize takes two optional parameters:
@@ -106,7 +106,7 @@ local bc = require("bc"):finalize({"some_noun"}, 10)
 ```
 
 ### `BaseControl:set(name, value)`
-Set a noun to a new value.  This only works if the noun `name` is a local one.
+Set a noun or verb to a new value.  This only works if `name` is local.
 You can not set remote nouns.  If `name` is a verb, value **must** be a function
 which will be the new callback.
 ```lua
@@ -257,5 +257,9 @@ of `filter_func` is `function(addr, msg_tbl)`, similar to the callback given to
 `Network:start`.  If `timeout` is not `nil`, `pull` should return after the
 timeout expired as well.
 
+**Important**:  When pulling on an event, the message handler given to `start`
+**must** have run before pull returns!  Make sure your implementation upholds
+this guarantee!
+
 ### `Network:stop()`
 Close this connection and uninstall the message handler.