README.md in sidekiq-throttled-0.16.2 vs README.md in sidekiq-throttled-0.17.0

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 ## Supported Sidekiq Versions
 
 This library aims to support work with following [Sidekiq][sidekiq] versions:
 
-* Sidekiq 6.0.x
-* Sidekiq 6.1.x
-* Sidekiq 6.2.x
-* Sidekiq 6.3.x
 * Sidekiq 6.4.x
 * Sidekiq 6.5.x
 
 
 ## Contributing