docs: add storage class docs in create bucket (#1301)

laljikanjareeya · stephenplusplus · web-flow · commit cbb2c258dcae · 2020-12-02T08:43:12.000-05:00
Co-authored-by: Stephen &lt;stephenplusplus@users.noreply.github.com&gt;
diff --git a/src/storage.ts b/src/storage.ts
@@ -529,6 +529,11 @@ export class Storage extends Service {
    *     Force the use of the User Project metadata field to assign operational
    *     costs when an operation is made on a Bucket and its objects.
    * @property {boolean} [standard=true] Specify the storage class as Standard.
+   * @property {string} [storageClass] The new storage class. (`standard`,
+   *     `nearline`, `coldline`, or `archive`).
+   *     **Note:** The storage classes `multi_regional`, `regional`, and
+   *     `durable_reduced_availability` are now legacy and will be deprecated in
+   *     the future.
    * @property {Versioning} [versioning=undefined] Specify the versioning status.
    * @property {string} [userProject] The ID of the project which will be billed
    *     for the request.
