Clarify documentation for CQ_INCLUDE_TRYBOTS.

BUG=skia:

DOCS_PREVIEW= https://skia.org/?cl=5330
CQ_INCLUDE_TRYBOTS=skia.primary:Test-Win-MSVC-ShuttleC-GPU-GTX960-x86_64-Debug-ANGLE

Change-Id: I2e9fa401c470951a8676c2357bb409d136b971ad
Reviewed-on: https://skia-review.googlesource.com/5330
Reviewed-by: Ravi Mistry <rmistry@google.com>
Commit-Queue: Ben Wagner <benjaminwagner@google.com>
diff --git a/site/dev/contrib/cqkeywords.md b/site/dev/contrib/cqkeywords.md
index 2b36488..e10dc9b 100644
--- a/site/dev/contrib/cqkeywords.md
+++ b/site/dev/contrib/cqkeywords.md
@@ -30,15 +30,13 @@
 
 This is the format of the values of this keyword:
 
-    CQ_INCLUDE_TRYBOTS=master1:bot1,bot2;master2:bot3,bot4
+    CQ_INCLUDE_TRYBOTS=bucket1:bot1,bot2;bucket2:bot3,bot4
 
 Here are some real world examples:
 
     CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_chromium_asan_rel_ng
 
-    CQ_INCLUDE_TRYBOTS=master.client.skia:Test-Win-MSVC-ShuttleC-GPU-GTX960-x86_64-Debug-ANGLE-Trybot
-
-**IMPORTANT**: Make sure each bot name ends in "-Trybot", otherwise your trybots may be treated as non-trybot builds!
+    CQ_INCLUDE_TRYBOTS=skia.primary:Test-Win-MSVC-ShuttleC-GPU-GTX960-x86_64-Debug-ANGLE
 
 TBR
 ---