fix typo (#747)

Author: andimarek

spec/GraphQL.md

@@ -9,7 +9,7 @@ This is the specification for GraphQL, a query language and execution engine
 originally created at Facebook in 2012 for describing the capabilities and
 requirements of data models for client-server applications. The development of
 this open standard started in 2015. This specification was licensed under OWFa
-1.0 in 2017. Copyright and trademark was transfered to the GraphQL Foundation
+1.0 in 2017. Copyright and trademark was transferred to the GraphQL Foundation
 in 2019.
 
 GraphQL has evolved and may continue to evolve in future editions of this