Update README.md

Author: VolkanSah

README.md

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 # ChatGPT API Integration (in HTML/CSS with JS/PHP)
-###### updated 23.04.2023 (works well)
+###### updated 25.04.2023 (works well)
 ![Screenshot](chatgpt.png)
 
 Example for integration from GPT 3, 3.5 & 4 for your websites in HTML, CSS, JS & PHP