Update re2

third_party/re2/README

Index: third_party/re2/README
diff --git a/third_party/re2/README b/third_party/re2/README
index 57b31813da15ecf6285dd075a9d7c59f5640adc7..2c236606f37a0288ed7784674230c933b7399b4e 100644
--- a/third_party/re2/README
+++ b/third_party/re2/README
@@ -1,7 +1,7 @@
 This is the source code repository for RE2, a regular expression library.
 
 For documentation about how to install and use RE2,
-visit http://code.google.com/p/re2/.
+visit https://github.com/google/re2/.
 
 The short version is:
 
@@ -10,10 +10,23 @@ make test
 make install
 make testinstall
 
+More information can be found on the wiki:
+https://github.com/google/re2/wiki
+
+Issue tracker:
+https://github.com/google/re2/issues
+
+Mailing list:
+https://groups.google.com/group/re2-dev
+
 Unless otherwise noted, the RE2 source files are distributed
 under the BSD-style license found in the LICENSE file.
 
 RE2's native language is C++.
-An Inferno wrapper is at http://code.google.com/p/inferno-re2/.
-A Python wrapper is at http://github.com/facebook/pyre2/.
-A Ruby wrapper is at http://github.com/axic/rre2/.
+An Erlang wrapper is at https://github.com/tuncer/re2/.
+An Inferno wrapper is at https://github.com/powerman/inferno-re2/.
+A Node.js wrapper is at https://github.com/uhop/node-re2/ and on NPM.
+An OCaml wrapper is at https://github.com/janestreet/re2/ and on OPAM.
+A Perl wrapper is at https://github.com/dgl/re-engine-RE2/ and on CPAN.
+A Python wrapper is at https://github.com/facebook/pyre2/.
+A Ruby wrapper is at https://github.com/axic/rre2/.