Fix broken formatting in rest-api-projects.txt

asciidoctor seems to need table closing lines to be the same
length as the opening lines.

Change-Id: Ib324f0513054041dcca6f8fd5d64f5e77b3014ae
diff --git a/Documentation/rest-api-projects.txt b/Documentation/rest-api-projects.txt
index 296184b..71d5e3e 100644
--- a/Documentation/rest-api-projects.txt
+++ b/Documentation/rest-api-projects.txt
@@ -1896,7 +1896,7 @@
 Actions the caller might be able to perform on this project. The
 information is a map of view names to
 link:rest-api-changes.html#action-info[ActionInfo] entities.
-|=========================================
+|=======================================================
 
 [[config-input]]
 === ConfigInput
@@ -1954,7 +1954,7 @@
 |`plugin_config_values`                    |optional|
 Plugin configuration values as map which maps the plugin name to a map
 of parameter names to values.
-|=========================================
+|======================================================
 
 [[config-parameter-info]]
 ConfigParameterInfo