Fix a typo in a documentation example

Since Ide4cb6507, the syntax is different and a colon must be used.

Change-Id: Ib07bea816c79c396e50c46608ff3167d77b4a639
diff --git a/resources/Documentation/rest-api-pending-checks.md b/resources/Documentation/rest-api-pending-checks.md
index c28c0a1..91771e3 100644
--- a/resources/Documentation/rest-api-pending-checks.md
+++ b/resources/Documentation/rest-api-pending-checks.md
@@ -44,7 +44,7 @@
 #### Request by checker
 
 ```
-  GET /plugins/@PLUGIN@/checks.pending/?query=checker=test:my-checker+(state:NOT_STARTED+OR+state:SCHEDULED) HTTP/1.0
+  GET /plugins/@PLUGIN@/checks.pending/?query=checker:test:my-checker+(state:NOT_STARTED+OR+state:SCHEDULED) HTTP/1.0
 ```
 
 As response a list of [PendingChecksInfo](#pending-checks-info)