[FIX] Fixed examples to README.md

Author: anuran-roy

README.md

@@ -43,7 +43,7 @@ console.log(chatPromptResult.choices[0]?.message?.content?.toString() ?? 'No res
 ```typescript structuredOutputLangtache.ts
 import { OpenAI } from 'openai';
 import z from 'zod';
-import { ChatPromptTemplate, getStructuredOutput } from '../src';
+import { ChatPromptTemplate, getStructuredOutput, getValidatedOutput } from '@anuran-roy/langtache';
 
 const chatClient = new OpenAI();
 const chatPromptStructuredOutput = new ChatPromptTemplate({