Fix missing comma in ingest-node.asciidoc
@@ -1341,7 +1341,7 @@ Here is an example of a pipeline specifying custom pattern definitions:
{
"grok": {
"field": "message",
- "patterns": ["my %{FAVORITE_DOG:dog} is colored %{RGB:color}"]
+ "patterns": ["my %{FAVORITE_DOG:dog} is colored %{RGB:color}"],
"pattern_definitions" : {
"FAVORITE_DOG" : "beagle",
"RGB" : "RED|GREEN|BLUE"
