Preparing release v1.12.0 (uber-go#752)

This prepares release v1.12.0, fixing the reference to the glide.lock in
the README while at it.

CHANGELOG.md

@@ -1,5 +1,10 @@
 # Changelog
 
+## 1.12.0 (29 Oct 2019)
+
+Enhancements:
+* [#751][]: Migrate to Go modules.
+
 ## 1.11.0 (21 Oct 2019)
 
 Enhancements:
@@ -335,3 +340,4 @@ upgrade to the upcoming stable release.
 [#704]: https://github.com/uber-go/zap/pull/704
 [#725]: https://github.com/uber-go/zap/pull/725
 [#736]: https://github.com/uber-go/zap/pull/736
+[#751]: https://github.com/uber-go/zap/pull/751

README.md

@@ -121,7 +121,7 @@ Released under the [MIT License](LICENSE.txt).
 
 <sup id="footnote-versions">1</sup> In particular, keep in mind that we may be
 benchmarking against slightly older versions of other packages. Versions are
-pinned in zap's [glide.lock][] file. [↩](#anchor-versions)
+pinned in the [benchmarks/go.mod][] file. [↩](#anchor-versions)
 
 [doc-img]: https://godoc.org/go.uber.org/zap?status.svg
 [doc]: https://godoc.org/go.uber.org/zap
@@ -130,5 +130,5 @@ pinned in zap's [glide.lock][] file. [↩](#anchor-versions)
 [cov-img]: https://codecov.io/gh/uber-go/zap/branch/master/graph/badge.svg
 [cov]: https://codecov.io/gh/uber-go/zap
 [benchmarking suite]: https://github.com/uber-go/zap/tree/master/benchmarks
-[glide.lock]: https://github.com/uber-go/zap/blob/master/glide.lock
+[benchmarks/go.mod]: https://github.com/uber-go/zap/blob/master/benchmarks/go.mod