Update description.

Koji TAKEO · Koji TAKEO · commit aa9cea782a96 · 2020-07-30T10:45:36.000+09:00
diff --git a/README.md b/README.md
@@ -1 +1,3 @@
 # libuvc-theta-sample
+## gst/gst_viewer
+Decode and display sample using gstreamer. You may need gstreamer1.0 develpment packages to build and run.

Original file line number	Diff line number	Diff line change
`@@ -1 +1,3 @@`
`1`	`1`	`# libuvc-theta-sample`
	`2`	`+## gst/gst_viewer`
	`3`	`+Decode and display sample using gstreamer. You may need gstreamer1.0 develpment packages to build and run.`