Created the release validation

validations/release.js

@@ -0,0 +1,12 @@
+const {semver} = require('joi-extension-semver');
+const Joi = require('joi').extend(semver);
+
+// The validation used when adding a new release
+module.exports.addRelease = Joi.object({
+    version: Joi.semver()
+        .valid()
+        .required(),
+    mc_versions: Joi.array()
+        .items(Joi.string().min(2).max(10)),
+    description: Joi.string()
+});