Update README.md

Author: aallam

README.md

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 # InstantSearch Android: Examples
->Example apps built with algolia/instantsearch-android **v1**.
+>Example apps built with algolia/instantsearch-android **v2**.
 
 [**InstantSearch Android**](https://github.com/algolia/instantsearch-android) is a library providing widgets and helpers to help you build the best instant-search experience on Android with Algolia.
 It is built on top of Algolia's [Kotlin API Client](https://github.com/algolia/algoliasearch-client-kotlin) to provide you a high-level solution to quickly build various search interfaces.