[Serverless] Document impact of using logsDB for security users

docs/serverless/rules/detections-logsdb-impact.asciidoc

@@ -5,7 +5,7 @@ LogsDB is enabled by default for Elastic serverless. This topic explains the imp
 
 With logsDB index mode, the original `_source` field is not stored in the index but can be reconstructed using {ref}/mapping-source-field.html#synthetic-source[synthetic `_source`].
 
-When the `_source` is reconstructed, you can make {ref}/mapping-source-field.html#synthetic-source-modifications[modifications] close to the original data. However, there could be a mismatch between how users expect field values to be formatted.
+When the `_source` is reconstructed, {ref}/mapping-source-field.html#synthetic-source-modifications[modifications] are possible. Therefore, there could be a mismatch between how users expect field values to be formatted.
 
 Continue reading to find out how this affects specific {sec-serverless} components.