Simplify the description and add the devault value for read_limit_per_cycle

Co-authored-by: Pat <[email protected]>
Signed-off-by: Hiroshi Hatake <[email protected]>

Author: cosmo0920

pipeline/inputs/windows-event-log-winevtlog.md

@@ -17,7 +17,7 @@ The plugin supports the following configuration parameters:
 | Render\_Event\_As\_XML | Whether to render system part of event as XML string or not. \(optional\) | False  |
 | Use\_ANSI | Use ANSI encoding on eventlog messages. If you have issues receiving blank strings with old Windows versions (Server 2012 R2), setting this to True may solve the problem. \(optional\) | False  |
 | Event\_Query | Specify XML query for filtering events. | `*` |
-| Read\_Limit\_Per\_Cycle | Specify reading limitation per a cycle. (\optional\)  | |
+| Read\_Limit\_Per\_Cycle | Specify read limit per cycle.  | 512KiB |
 
 Note that if you do not set _db_, the plugin will tail channels on each startup.