Update Queries.md

Co-authored-by: Joseph Livesey <[email protected]>

Author: gusinacio

docs/Queries.md

@@ -1,6 +1,6 @@
 # Query examples
 
-These are a (non-exhaustive) list of possible queries 
+This is a (non-exhaustive) list of possible queries 
 and their responses for `indexer-service-rs`.
 
 ## Supported request and response format examples