New Changes

[ajeetraina]

Below are the list of changes made to the developer site:

1. Added HowTos for Movie Database - https://developer.redislabs.com/howtos/Shoppingcart/
2. Correct Go Logo - developer.redislabs.com
3. Explore tab pointing directly to RedisInsight - https://developer.redislabs.com/explore/redisinsight/
4. Added RedisInsight for Linux, Windows, Mac, Docker & Kubernetes - https://developer.redislabs.com/explore/redisinsight
5. Added Redis Data Source for Grafana - https://developer.redislabs.com/explore/redisdatasource
6. Added HowTos for Shopping Cart - https://developer.redislabs.com/howtos/shoppingcart
7. Added HowTos for Rate Limiting - https://developer.redislabs.com/howtos/ratelimiting
8. Added HowTos for Leaderboard
9. Modified Top Nav to include Forum, Getting Started and TryFree
10. Added page for Rust - https://developer.redislabs.com/develop/rust/