(DOCSP-49638) 1x weekly email report limitation (#699)

* (DOCSP-49638) 1x weekly email report limitation

* (DOCSP-49638) typo fix

* (DOCSP-49638) tech feedback

Author: carriecwk

source/dashboards/view-dashboard-data/scheduled-reports.txt

@@ -58,7 +58,7 @@ Limitations
 - For ``M0`` {+clusters+}, you can create one scheduled report per 
   project.
 
-- For ``M2`` and higher tier {+clusters+}, you can create up to 100 
+- For Flex and ``M10`` and higher tier {+clusters+}, you can create up to 100 
   scheduled reports per project.
 
 - At this time:
@@ -67,6 +67,15 @@ Limitations
   - If an entire dashboard takes more than five minutes to load, then
     |charts-short| does not take a screenshot for scheduled reports.
 
+- If your subscription is free-tier, you can only schedule one weekly 
+  email report at a time. The :guilabel:`Weekly` frequency is 
+  selected by default. 
+
+  You can't select :guilabel:`Once` or :guilabel:`Daily` as your frequency.
+
+  If your schedule limit is reached, the :guilabel:`Schedule limit reached` 
+  modal appears, from which you can select your payment plan. 
+
 .. _create-scheduled-report:
 
 Create a Scheduled Report