fix: Fix incorrect getSchemas type (#219)

fixing readme and schema type

Author: jimmycallin

README.md

@@ -41,10 +41,10 @@ You can generate schema types for your own workspace with [@ftrack/ts-schema-gen
 Once generated, you can integrate them with @ftrack/api by passing them as a type variable:
 
 ```ts
-import SchemaTypes from "./__generated__/schema.ts";
+import { EntityTypeMap } from "./__generated__/schema.ts";
 import { Session } from "@ftrack/api";
 
-const session = new Session<SchemaTypes>(...);
+const session = new Session<EntityTypeMap>(...);
 
 // user will now be of type User
 // and provide all available properties for its entity type.

source/session.ts

@@ -594,7 +594,7 @@ export class Session<
    * This is cached after the first call, and assumes that the schemas will not change during the session.
    * @returns Promise with the API schemas for the session.
    */
-  async getSchemas(): Promise<Schema<TEntityTypeMap[keyof TEntityTypeMap]>[]> {
+  async getSchemas(): Promise<Schema<TEntityTypeMap>[]> {
     if (!this.schemasPromise) {
       this.schemasPromise = this.call<QuerySchemasResponse<TEntityTypeMap>>([
         { action: "query_schemas" },