Add a RELEASE.md as the release note.

DualityGap · tensorflow-copybara · commit e0b3311b7a98 · 2019-09-17T12:26:24.000-07:00
PiperOrigin-RevId: 269628181
diff --git a/RELEASE.md b/RELEASE.md
@@ -0,0 +1,3 @@
+# Release 1.0.0
+
+Initial release of Neural Structured Learning in TensorFlow.

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,3 @@`
	`1`	`+# Release 1.0.0`
	`2`	`+`
	`3`	`+Initial release of Neural Structured Learning in TensorFlow.`