State greediness of GraphQL

Explicitly state that the GraphQL grammar is greedy to clear up possible disambiguity. Closes #539
graphql · Feb 13, 2019 · 740515a · 740515a
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commit 740515a
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diff --git a/spec/Appendix A -- Notation Conventions.md b/spec/Appendix A -- Notation Conventions.md
@@ -43,6 +43,8 @@ ListOfLetterA :
   - `a`
   - ListOfLetterA `a`
 
+The GraphQL grammar is greedy; this means that when given a choice between two definitions 
+in a production, the rule matching the longest sequence of tokens prevails. 
 
 ## Lexical and Syntactical Grammar