Update src/connections/reverse-etl/system.md

Author: forstisabella

src/connections/reverse-etl/system.md

@@ -48,7 +48,8 @@ The extract phase is the time spent connecting to your database, executing the m
 
 Name | Details | Limit
 ----- | ------- | ------
-Record count | The maximum number of records a single sync will process. Note: This is the number of records extracted from the warehouse not the limit for the number of records loaded to the destination (for example, new/update/deleted). | <sup>*</sup>150 million records
+Record count | The maximum number of records a single sync will process. If a sync would contain more than 150 million records, Segment separates the data into multiple syncs, each containing no more than 150 million records. 
+ <br><br> Note: This is the number of records extracted from the warehouse, not the limit for the number of records loaded to the destination (for example, new/update/deleted). | <sup>*</sup>150 million records
 Column count | The maximum number of columns a single sync will process. | 512 columns
 Column name length | The maximum length of a record column. | 128 characters
 Record JSON size | The maximum size for a record when converted to JSON (some of this limit is used by Segment). | 512 KiB