Fix spelling, "lexographicSortSchema" => "lexicographicSortSchema"

src/index.js

@@ -327,7 +327,7 @@ export {
   // language AST.
   extendSchema,
   // Sort a GraphQLSchema.
-  lexographicSortSchema,
+  lexicographicSortSchema,
   // Print a GraphQLSchema to GraphQL Schema language.
   printSchema,
   // Prints the built-in introspection schema in the Schema Language

src/utilities/__tests__/lexographicSortSchema-test.js → src/utilities/__tests__/lexicographicSortSchema-test.js

@@ -10,14 +10,14 @@ import { expect } from 'chai';
 import dedent from '../../jsutils/dedent';
 import { printSchema } from '../schemaPrinter';
 import { buildSchema } from '../buildASTSchema';
-import { lexographicSortSchema } from '../lexographicSortSchema';
+import { lexicographicSortSchema } from '../lexicographicSortSchema';
 
 function sortSDL(sdl) {
   const schema = buildSchema(sdl);
-  return printSchema(lexographicSortSchema(schema));
+  return printSchema(lexicographicSortSchema(schema));
 }
 
-describe('lexographicSortSchema', () => {
+describe('lexicographicSortSchema', () => {
   it('sort fields', () => {
     const sorted = sortSDL(dedent`
       input Bar {

src/utilities/index.js

@@ -54,7 +54,7 @@ export { buildASTSchema, buildSchema, getDescription } from './buildASTSchema';
 export { extendSchema } from './extendSchema';
 
 // Sort a GraphQLSchema.
-export { lexographicSortSchema } from './lexographicSortSchema';
+export { lexicographicSortSchema } from './lexicographicSortSchema';
 
 // Print a GraphQLSchema to GraphQL Schema language.
 export {

src/utilities/lexographicSortSchema.js → src/utilities/lexicographicSortSchema.js

@@ -35,7 +35,7 @@ import { isIntrospectionType } from '../type/introspection';
 /**
  * Sort GraphQLSchema.
  */
-export function lexographicSortSchema(schema: GraphQLSchema): GraphQLSchema {
+export function lexicographicSortSchema(schema: GraphQLSchema): GraphQLSchema {
   const cache = Object.create(null);
 
   const sortMaybeType = maybeType => maybeType && sortNamedType(maybeType);