chore: add RELEASE.md

Signed-off-by: Ricky Saechao <[email protected]>

Author: RickyLB

RELEASE.md

@@ -0,0 +1,13 @@
+# Release process for SWIFT SDK
+
+## Release
+1. Create a new git branch: `release/vX.Y.Z`.
+2. Run all tests against [hedera-local-node](https://github.com/hashgraph/hedera-local-node). Stop local-node once the tests are completed.
+>- `swift test`
+3. Change the version number in *Cargo.toml*.
+>- `version = major.minor.patch`
+>- Follows [semver 2.0](https://semver.org/spec/v2.0.0.html)
+6. Create a new tag.
+>- `git push -a <version> -m <version>`
+7. Once branch has been approved and merged to main, document added features pertaining to the newest release.
+>- [Tags and Releases for Swift SDK](https://github.com/hashgraph/hedera-sdk-swift/releases)