Enriching object metadata during exportation.

src/MiniDocs/GtGQLSnippet.extension.st

@@ -4,6 +4,11 @@ Extension { #name : #GtGQLSnippet }
 GtGQLSnippet >> asMarkdeep [
 	| output |
 	output := WriteStream on: ''.
+	self metadata
+		at: 'operation' put: self operation;
+		at: 'input' put: self input;
+		at: 'context' put: self context;
+		yourself.
 	output
 		nextPutAll: self metadataDiv;
 		nextPutAll: self markdeepCustomOpener;