Update to 0.3.1

Author: liuliu

README.md

@@ -56,8 +56,8 @@ If your project is already managed by Bazel, **Dflat** provides fully-integrated
 git_repository(
   name = "dflat",
   remote = "https://github.com/liuliu/dflat.git",
-  commit = "88aec220642bb5e416074bc8b8a4e5c8b86a61c2",
-  shallow_since = "1604112303 -0400"
+  commit = "3dc11274e8c466dd28ee35cdd04e84ddf7d420bc",
+  shallow_since = "1604185591 -0400"
 )
 
 load("@dflat//:deps.bzl", "dflat_deps")
@@ -100,7 +100,7 @@ You can use `dflatc` compiler to manually generate code from flatbuffers schema.
 You can now add the generated source code to your project and then proceed to add **Dflat** runtime with Swift Package Manager:
 
 ```swift
-.package(name: "Dflat", url: "https://github.com/liuliu/dflat.git", from: "0.3.0")
+.package(name: "Dflat", url: "https://github.com/liuliu/dflat.git", from: "0.3.1")
 ```
 
 ## Example