chore: Add migration guide for v10 and move v8->v9 guide to docs

Author: andreiborza

MIGRATION.md

@@ -6,7 +6,10 @@ These docs walk through how to migrate our JavaScript SDKs through different maj
 - Upgrading from [SDK 6.x to 7.x](./docs/migration/v6-to-v7.md)
 - Upgrading from [SDK 7.x to 8.x](./docs/migration/v7-to-v8.md)
 - Upgrading from [SDK 8.x to 9.x](./docs/migration/v8-to-v9.md)
-- Upgrading from [SDK 9.x to 10.x](#upgrading-from-9x-to-10x)
+  <<<<<<< HEAD
+- # Upgrading from [SDK 9.x to 10.x](#upgrading-from-9x-to-10x)
+- Upgrading from [SDK 9.x to 10.x](#upgrading-from-8x-to-9x)
+  > > > > > > > f726d5ab5 (chore: Add migration guide for v10 and move v8->v9 guide to docs)
 
 # Upgrading from 9.x to 10.x