DEV: add multi-add example to SADD command page (#1365)

Author: dwdougherty

content/commands/sadd/index.md

@@ -65,10 +65,8 @@ An error is returned when the value stored at `key` is not a set.
 ## Examples
 
 {{< clients-example cmds_set sadd >}}
-redis> SADD myset "Hello"
-(integer) 1
-redis> SADD myset "World"
-(integer) 1
+redis> SADD myset "Hello" "World"
+(integer) 2
 redis> SADD myset "World"
 (integer) 0
 redis> SMEMBERS myset
@@ -79,8 +77,7 @@ redis> SMEMBERS myset
 Give these commands a try in the interactive console:
 
 {{% redis-cli %}}
-SADD myset "Hello"
-SADD myset "World"
+SADD myset "Hello" "World"
 SADD myset "World"
 SMEMBERS myset
 {{% /redis-cli %}}