add info regarding the limitation of the "Select All" option on the Grid.

Author: sj0x55

articles/azure-monitor/visualize/workbooks-limits.md

@@ -33,7 +33,7 @@ This table lists the limits of specific data visualizations.
 
 |Visualization|Limits |
 |---------|---------|
-|Grid|By default, grids only display the first 250 rows of data. This setting can be changed in the query component's advanced settings to display up to 10,000 rows. Any further items are ignored, and a warning appears.|
+|Grid|By default, grids only display the first 250 rows of data. This setting can be changed in the query component's advanced settings to display up to 10,000 rows. Any further items are ignored, and a warning appears.<br>The checkbox for toggling the selection of all items is only available when the grid displays 150 rows of data or less.|
 |Charts|Charts are limited to 100 series.<br>Charts are limited to 10,000 data points. |
 |Tiles|Tiles is limited to displaying 100 tiles. Any further items are ignored, and a warning appears.|
 |Maps|Maps are limited to displaying 100 points. Any further items are ignored, and a warning appears.|
@@ -48,4 +48,4 @@ This table lists the limits of specific data parameters.
 |Drop down|Drop-down-based parameters are limited to 1,000 items. Any items returned by a query after that are ignored.<br>When based on a query, only the first four columns of data produced by the query are used. Any other columns are ignored.|
 |Multi-value|Multi-value parameters are limited to 100 items. Any items returned by a query after that are ignored.<br>When based on a query, only the first column of data produced by the query is used. Any other columns are ignored. |
 |Options group|Options group parameters are limited to 1,000 items. Any items returned by a query after that are ignored. <br>When based on a query, only the first column of data produced by the query is used. Any other columns are ignored.|
-|Text|Text parameters that retrieve their value based on a query will only display the first cell returned by the query (row 1, column 1). Any other data is ignored.|
+|Text|Text parameters that retrieve their value based on a query will only display the first cell returned by the query (row 1, column 1). Any other data is ignored.|