Fix missing newline at end of RELEASE.md

Author: davc0n

RELEASE.md

@@ -11,4 +11,4 @@ export ORG_GRADLE_PROJECT_mavenCentralPassword=SONATYPE_PASSWORD_GOES_HERE
 ```
 `./gradlew build`\
 `./gradlew publish -Psigning.keyId=E0F9CC42 -Psigning.secretKeyRingFile=$HOME/.gnupg/modernmt.gpg -Psigning.password=$(cat ~/.gnupg/mmt_passphrase)`\
-`./gradlew closeAndReleaseRepository`
+`./gradlew closeAndReleaseRepository`