doc/go1.13: add release notes for GOWASM environment variable
Change-Id: I103a21ae0be8feb9447fa277483b7c2a8b5807e7
Reviewed-on: https://go-review.googlesource.com/c/go/+/188540
Reviewed-by: Andrew Bonventre <andybons@golang.org>
Reviewed-by: Richard Musiol <neelance@gmail.com>
diff --git a/doc/go1.13.html b/doc/go1.13.html
index 34a2d5e..bc44531 100644
--- a/doc/go1.13.html
+++ b/doc/go1.13.html
@@ -105,6 +105,11 @@
Go 1.13 is the last release that will run on Native Client (NaCl).
</p>
+<p><!-- CL 170119, CL 168882 -->
+ For <code>GOARCH=wasm</code>, the new environment variable <code>GOWASM</code> takes a comma-separated list of experimental features that the binary gets compiled with.
+ The valid values are documented <a href="/cmd/go/#hdr-Environment_variables">here</a>.
+</p>
+
<h3 id="aix">AIX</h3>
<p><!-- CL 164003, CL 169120 -->