Add a README
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..a1899ce
--- /dev/null
+++ b/README.md
@@ -0,0 +1,12 @@
+# googleurl
+
+This is a copy of [Chrome's URL parsing
+library](https://cs.chromium.org/chromium/src/url/), adapted to work with
+[Bazel](https://bazel.build/). It is meant to be used by
+[QUICHE](https://quiche.googlesource.com/quiche/+/refs/heads/master), but can be
+also used by other projects that use Bazel.
+
+In order to be used successfully, `-std=c++14` and `-fno-strict-aliasing`
+compile flags are required.
+
+For questions, contact <proto-quic@chromium.org>.
