Update 103-nosql-databases.md (#2911)

I guess we cannot count S3 as key-value in the common meaning

content/roadmaps/114-software-architect/content/109-working-with-data/103-nosql-databases.md

@@ -4,9 +4,9 @@ NoSQL databases (aka "not only SQL") are non-tabular databases and store data di
 
 Types of NoSQL databases
 * Document databases Ex. MongoDB
-* Key-value databases Ex. Amazon S3
+* Key-value databases Ex. Redis
 * Wide-column databases Ex. Cassandra
 * Graph databases Ex. Neo4J
 
 <ResourceGroupTitle>Free Content</ResourceGroupTitle>
-<BadgeLink colorScheme='yellow' badgeText='Read' href='https://www.mongodb.com/nosql-explained'>NoSQL Databases</BadgeLink>
+<BadgeLink colorScheme='yellow' badgeText='Read' href='https://www.mongodb.com/nosql-explained'>NoSQL Databases</BadgeLink>