Update README.md

Fix the discord link

Simplifies the translation mechanism

Adds a missing GetTranslatedStringText implementation

Merge pull request microsoft#278 from netonjm/fix/misc

Fix/misc

[Cocoa] Fixes multiline characters issue

Merge pull request microsoft#277 from netonjm/tranlation_service

Adds a mechanism to allow change translation in services

Merge pull request microsoft#274 from netonjm/fix-272

Adds mechanism to make flexible containers and views

Merge pull request microsoft#276 from netonjm/fix-219

Adds PlaceHolderConverter

cocoa: Fix TabView