Update PRESENTATIONS.md

Author: NatashaTheRobot

PRESENTATIONS.md

@@ -9,14 +9,14 @@
 | Paola Mata | [@PaolaNotPaolo](https://twitter.com/PaolaNotPaolo) | Exploring Natural Language Processing | [Slides](https://www.slideshare.net/PaolaMata3/exploring-natural-language-processing) & [GitHub project](https://github.com/pmatanyc/NLPDemo) | [x](https://academy.realm.io/posts/try-swift-nyc-2017-paola-mata-exploring-natural-language-processing/)
 | Matt Gallagher | [@cocoawithlove](https://twitter.com/cocoawithlove) | View-State Driven Applications | [Slides](https://speakerdeck.com/mattgallagher/try-swift-2017-view-state-driven-applications) & [GitHub project](https://github.com/mattgallagher/clocks) | [x](https://academy.realm.io/posts/try-swift-nyc-2017-matt-gallagher-driving-view-state-through-data/?utm_source=ios-list&utm_medium=email)
 | Nataliya Patsovska | [@nataliya_bg](https://twitter.com/nataliya_bg) | MVVM at Scale  | [Slides](https://www.slideshare.net/NataliyaPatsovska/mvvm-at-scale-not-so-simple-tryswift-nyc17) & [GitHub project](https://github.com/nataliq/TripCheckins) | [x](https://academy.realm.io/posts/try-swift-nyc-2017-nataliya-patsovska-mvvm-at-scale/)
-| Priya Rajagopal | [@rajagp](https://twitter.com/rajagp) | Core Data Migrations and A Better Option | [x](https://www.slideshare.net/PriyaRajagopal1/core-data-migrations-and-a-better-option) | TBA
+| Priya Rajagopal | [@rajagp](https://twitter.com/rajagp) | Core Data Migrations: Can we do Better? | [x](https://www.slideshare.net/PriyaRajagopal1/core-data-migrations-and-a-better-option) | [x](https://academy.realm.io/posts/try-swift-nyc-2017-priya-rajagopal-core-data-migration/)
 | Harlan Haskins | [@harlanhaskins](https://twitter.com/harlanhaskins) | Improving Swift Tools with libSyntax | [x](https://speakerdeck.com/harlanhaskins/improving-swift-tools-with-libsyntax) | [x](https://academy.realm.io/posts/improving-swift-tools-with-libsyntax-try-swift-haskin-2017/)
 | Carl Brown | [@CarlBrwn](https://twitter.com/CarlBrwn) | Swift from the Foundation Up | [Slides](https://www.slideshare.net/carlbrown/better-swift-from-the-foundation-up-tryswiftnyc17-0906) & [GitHub project](https://github.com/carlbrown/SwiftPRInsights) | TBA
 | Glenna Buford | [@glennersboofy](https://twitter.com/glennersboofy) | Getting Started With ARKit Tips + Tricks  | [Slides](https://speakerdeck.com/glenna/arkit-tips-plus-tricks) & [Github project](https://github.com/glenna/arkit-demo) | TBA
 | Yasuhiro Inami | [@inamiy](https://twitter.com/inamiy) | Swift 4 Codable  | [x](https://speakerdeck.com/inamiy/swift-4-codable-try-swift-nyc-2017) | TBA
-| Sonam Dhingra | [@Sdhingra89](https://twitter.com/Sdhingra89) | Building a framework with Viper  | [Slides](https://speakerdeck.com/socohesive/viper-ios-and-frameworks) & [GitHub project](https://github.com/ustwo/videoplayback-ios) | TBA
-| Ray Tsaihong | [@rmundo](https://twitter.com/rmundo) | Swift Chatbots for Fun and Profit | [x](https://speakerdeck.com/rmundo/swift-chatbots-for-fun-and-profit) | TBA
-| Eleni Papanikolopoulou & Kostas Kremizas | [@elenipapanikolo](https://twitter.com/elenipapanikolo) & [@kostaskremizas](https://twitter.com/kostaskremizas) | Error Handling Made Easy | [Slides](https://speakerdeck.com/eleni_papan/try-swift-2017-nyc-error-handling-made-easy) & [GitHub project](https://github.com/Workable/swift-error-handler) | TBA
+| Sonam Dhingra | [@Sdhingra89](https://twitter.com/Sdhingra89) | Building a Framework with Viper  | [Slides](https://speakerdeck.com/socohesive/viper-ios-and-frameworks) & [GitHub project](https://github.com/ustwo/videoplayback-ios) | [x](https://academy.realm.io/posts/try-swift-nyc-sonam-dhingra-building-viper-framework/)
+| Ray Tsaihong | [@rmundo](https://twitter.com/rmundo) | Swift Chatbots for Fun and Profit | [x](https://speakerdeck.com/rmundo/swift-chatbots-for-fun-and-profit) | [x](https://academy.realm.io/posts/ray-tsaihong-swift-chatbots-for-fun-and-profit/)
+| Eleni Papanikolopoulou & Kostas Kremizas | [@elenipapanikolo](https://twitter.com/elenipapanikolo) & [@kostaskremizas](https://twitter.com/kostaskremizas) | Error Handling Made Easy | [Slides](https://speakerdeck.com/eleni_papan/try-swift-2017-nyc-error-handling-made-easy) & [GitHub project](https://github.com/Workable/swift-error-handler) | [x](https://academy.realm.io/posts/try-swift-nyc-2017-eleni-papanikolopoulou-kostas-kremizas-error-handling/)
 | Tanner Nelson | [@tanner0101](https://twitter.com/rmundo) | Server-Side Swift Using Swift  | [x](https://speakerdeck.com/tanner0101/server-side-swift-using-vapor) | [x](https://academy.realm.io/posts/try-swift-nyc-tanner-nelson-server-side-swift-using-vapor/)
 | Krunoslav Zaher | [@krunoslavzaher](https://twitter.com/krunoslavzaher) | Modern RxSwift Architectures | [Slides](https://github.com/kzaher/RxFeedback) & [Github project](https://github.com/kzaher/RxFeedback) | [x](https://academy.realm.io/posts/try-swift-nyc-2017-krunoslav-zaher-modern-rxswift-architectures/)
 | Julio Carrettoni | [@dev_jac](https://twitter.com/dev_jac) | Accessibility - Everyone is your user | [Slides](https://speakerdeck.com/dev_jac/accessibility-everyone-is-your-user) & [GitHub project](https://github.com/Julioacarrettoni/tryswiftnycAccessibilityDemo) | TBA