Added an example of using a global tag

From the yaml spec

diff --git a/examples/global-tag.yaml b/examples/global-tag.yaml
new file mode 100644 (file)
index 0000000..1180757
--- /dev/null
+++ b/examples/global-tag.yaml
@@ -0,0 +1,14 @@
+%TAG ! tag:clarkevans.com,2002:
+--- !shape
+  # Use the ! handle for presenting
+  # tag:clarkevans.com,2002:circle
+- !circle
+  center: &ORIGIN {x: 73, y: 129}
+  radius: 7
+- !line
+  start: *ORIGIN
+  finish: { x: 89, y: 102 }
+- !label
+  start: *ORIGIN
+  color: 0xFFEEBB
+  text: Pretty vector drawing.