Fixing some typos.

docs/source/schema-directives.md

@@ -15,7 +15,7 @@ This document focuses on `@directive`s that appear in GraphQL _schemas_ written
 
 In order for a `@directive` to have any consequences, the GraphQL server must be configured to apply a specific implementation of that `@directive` to the `GraphQLSchema` object. This document describes one possible approach to defining reusable `@directive` implementations, namely the `SchemaDirectiveVisitor` abstraction provided by the `graphql-tools` npm package.
 
-The possible applications of `@directive` syntax are practically limitless: enforcing access permissions, formatting date strings, auto-generating resolver functions for a particular backend API, marking strings for internationalization, synthesizing globally unique object identifiers, specifying caching behavior, skipping or including or deprecating fields, and just about anything else you can imagine.
+The possible applications of `@directive` syntax are numerous: enforcing access permissions, formatting date strings, auto-generating resolver functions for a particular backend API, marking strings for internationalization, synthesizing globally unique object identifiers, specifying caching behavior, skipping or including or deprecating fields, and just about anything else you can imagine.
 
 ## Simple Directive example
 

src/schemaVisitor.ts

@@ -41,7 +41,7 @@ const hasOwn = Object.prototype.hasOwnProperty;
 export abstract class SchemaVisitor {
   // All SchemaVisitor instances are created while visiting a specific
   // GraphQLSchema object, so this property holds a reference to that object,
-  // in case a vistor method needs to refer to this.schema.
+  // in case a visitor method needs to refer to this.schema.
   public schema: GraphQLSchema;
 
   // Determine if this SchemaVisitor (sub)class implements a particular
@@ -119,7 +119,7 @@ export function visitSchema(
   function callMethod(
     methodName: string,
     type: VisitableSchemaType,
-    ...args: any[],
+    ...args: any[]
   ) {
     visitorSelector(type, methodName).forEach(visitor => {
       visitor[methodName](type, ...args);