Documentation:  Important things on front page

NOTRY=true
DOCS_PREVIEW= https://skia.org/?cl=2112643003

Review-Url: https://codereview.chromium.org/2112643003
diff --git a/site/index.md b/site/index.md
index adbebbc..7a83f59 100644
--- a/site/index.md
+++ b/site/index.md
@@ -11,8 +11,12 @@
 is done by the Skia development team, we consider contributions from any
 source.
 
-The canonical source tree is here:
-[skia.googlesource.com/skia](https://skia.googlesource.com/skia).
+  * Canonical source tree:
+    [skia.googlesource.com/skia](https://skia.googlesource.com/skia).
+  * Issue tracker:
+    [bug.skia.org](https://bug.skia.org/).
+  * Discussion forum:
+    [skia-discuss@googlegroups.com](https://groups.google.com/forum/#!forum/skia-discuss).
 
 Showcase
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