Correct srv:serviceContext
diff --git a/source/documentation/query/service.md b/source/documentation/query/service.md
index 5eb54e7..452b5f6 100644
--- a/source/documentation/query/service.md
+++ b/source/documentation/query/service.md
@@ -68,7 +68,7 @@
`srv:queryTimeout` | Set timeouts | none
`srv:queryCompression` | Enable use of deflation and GZip | true
`srv:queryClient` | Enable use of a specific client | none
-`srv:queryContext` | Per-endpoint configuration | none
+`srv:serviceContext` | Per-endpoint configuration | none
#### `srv:queryTimeout`
@@ -89,9 +89,13 @@
#### `srv:serviceContext`
-As documented above.
+Provides a mechanism to override system context settings on a per URI basis.
-[ARQ documentation index](index.html)
+The value is a `Map<String,Context>` where the map key is the URI of the service endpoint, and the `Context` is a set of values to override the default values.
+
+If a context is provided for the URI, the system context is copied and the
+context for the URI is used to set specific values. This ensures that any URI
+specific settings will be used.
[1]: https://hc.apache.org/httpcomponents-client-ga/httpclient/apidocs/org/apache/http/client/HttpClient.html
