Add missing closing parentheses in function calls

These were missing from #109 but weren't causing any functional
problems.

Author: jparise

README.md

@@ -61,7 +61,7 @@ const query = gql`
       lastName
     }
   }
-`;
+`);
 ```
 
 The list of recognized tag names is defined by the `g:graphql_javascript_tags`

test/javascript/default.vader

@@ -78,7 +78,7 @@ Given javascript (Template literal with a graphql() function):
         lastName
       }
     }
-  `;
+  `);
 
 Execute (Syntax assertions):
   AssertEqual 'javascript', b:current_syntax
@@ -98,7 +98,7 @@ Given javascript (Custom function):
         lastName
       }
     }
-  `;
+  `);
 
 Execute (Function names can be customized):
   let b:graphql_javascript_functions = ['gql']

test/typescript/default.vader

@@ -95,7 +95,7 @@ Given typescript (Template literal with a graphql() function):
         lastName
       }
     }
-  `;
+  `);
 
 Execute (Syntax assertions):
   AssertEqual 'typescript', b:current_syntax