link all three logic block type config references to default events

and add a deprecation notice on counter_(name)_hit per code comment from 2017 :)

Author: bosh

docs/config/accruals.md

@@ -210,12 +210,18 @@ List of one (or more) events.
 
 Events that will be posted when this device is completed.
 
+If you do not provide a value for this config, the default
+[`logicblock_(name)_complete`](../events/logicblock_name_complete.md) will be used.
+
 ### events_when_hit:
 
 List of one (or more) events.
 
 Events that will be posted when this device is hit or advanced.
 
+If you do not provide a value for this config, the default
+[`logicblock_(name)_hit`](../events/logicblock_name_hit.md) will be used.
+
 ### persist_state:
 
 Single value, type: `boolean` (`true`/`false`). Default: `false`

docs/config/counters.md

@@ -237,12 +237,18 @@ List of one (or more) events.
 
 Events that will be posted when this device is completed.
 
+If you do not provide a value for this config, the default
+[`logicblock_(name)_complete`](../events/logicblock_name_complete.md) will be used.
+
 ### events_when_hit:
 
 List of one (or more) events.
 
 Events that will be posted when this device is hit or advanced.
 
+If you do not provide a value for this config, the default
+[`logicblock_(name)_hit`](../events/logicblock_name_hit.md) will be used.
+
 ### persist_state:
 
 Single value, type: `boolean` (`true`/`false`). Default: `false`

docs/config/sequences.md

@@ -190,12 +190,18 @@ List of one (or more) events.
 
 Events that will be posted when this device is completed.
 
+If you do not provide a value for this config, the default
+[`logicblock_(name)_complete`](../events/logicblock_name_complete.md) will be used.
+
 ### events_when_hit:
 
 List of one (or more) events.
 
 Events that will be posted when this device is hit or advanced.
 
+If you do not provide a value for this config, the default
+[`logicblock_(name)_hit`](../events/logicblock_name_hit.md) will be used.
+
 ### persist_state:
 
 Single value, type: `boolean` (`true`/`false`). Default: `false`

docs/events/logicblock_name_hit.md

@@ -11,6 +11,13 @@ Event is posted by [counters:](../config/counters.md), [accruals:](../config/acc
 
 The logic block (name) was just hit.
 
+## Deprecation warning:
+
+In previous versions of MPF, the event `counter_(name)_hit` was used for counters instead of this event, `logicblock_(name)_hit`.
+Currently, both events are posted together (if you have not provided a custom [`events_when_hit`](../config/counters.md#events_when_hit) value for the counter),
+but `counter_(name)_hit` is considered deprecated and may be removed in future versions of MPF.
+
+
 ## Keyword arguments
 
 (See the [Conditional Events](overview/conditional.md)