Update setup boilerplate for rules_go 0.10.3 (#176)

[skip ci]
[ci skip]
diff --git a/README.rst b/README.rst
index 4cdf6ac..bc96dee 100644
--- a/README.rst
+++ b/README.rst
@@ -54,8 +54,8 @@
 
     http_archive(
         name = "io_bazel_rules_go",
-        url = "https://github.com/bazelbuild/rules_go/releases/download/0.10.1/rules_go-0.10.1.tar.gz",
-        sha256 = "4b14d8dd31c6dbaf3ff871adcd03f28c3274e42abc855cb8fb4d01233c0154dc",
+        url = "https://github.com/bazelbuild/rules_go/releases/download/0.10.3/rules_go-0.10.3.tar.gz",
+        sha256 = "feba3278c13cde8d67e341a837f69a029f698d7a27ddbb2a202be7a10b22142a",
     )
     http_archive(
         name = "bazel_gazelle",