review comments

docs/content/latest/quick-start/install/macos.md

@@ -152,7 +152,7 @@ sudo ifconfig lo0 alias 127.0.0.6
 sudo ifconfig lo0 alias 127.0.0.7
 ```
 
-The loopback addresses do not persist after rebooting your Mac.
+The loopback addresses _do not_ persist after rebooting your Mac.
 
 To verify that the extra loopback addresses exist, run the following command.
 

docs/content/latest/sample-data/retail-analytics.md

@@ -460,46 +460,3 @@ min               |       max        |       avg
  15.6919436739704 | 98.8193368436819 | 55.7463996679207
 (1 row)
 ```
-
-### What percentage of the total sales is from the Facebook channel?
-
-You can do this as shown below.
-
-```sql
-yb_demo=# CREATE VIEW channel AS
-            (SELECT source, ROUND(SUM(orders.total)) AS total_sales
-             FROM users, orders
-             WHERE users.id=orders.user_id
-             GROUP BY source
-             ORDER BY total_sales DESC);
-```
-
-Now that the view is created, you can see it in our list of relations.
-
-```sql
-yb_demo=# \d
-```
-
-```output
-List of relations
- Schema |   Name   | Type  |  Owner
---------+----------+-------+----------
- public | channel  | view  | postgres
- public | orders   | table | postgres
- public | products | table | postgres
- public | reviews  | table | postgres
- public | users    | table | postgres
-(5 rows)
-```
-
-```sql
-yb_demo=# SELECT source, total_sales * 100.0 / (SELECT SUM(total_sales) FROM channel) AS percent_sales
-          FROM channel WHERE source='Facebook';
-```
-
-```output
-source    |  percent_sales
-----------+------------------
- Facebook | 20.9018954710909
-(1 row)
-```