Update app.py

app.py

@@ -4,7 +4,7 @@ from pytube import YouTube
 class YouTubeDownloader:
     @staticmethod
     def run():
-        st.header("YouTube Video Downloader")
+        st.header("유튜브(Youtube) 영상 URL로 다운로드")
         url = st.text_input("Enter YouTube URL to download:")
         if url:
             YouTubeDownloader.validate_url(url)
@@ -15,7 +15,7 @@ class YouTubeDownloader:
                 file_ = YouTubeDownloader.download_video(url)
                 st.video(file_)
                 YouTubeDownloader.helper_message()
-        st.markdown("> App made by Abhay Koul ([HelpingAI on GitHub](https://github.com/HelpingAI))")
+        st.markdown("https://github.com/HelpingAI))")
 
 
     @staticmethod
@@ -35,7 +35,7 @@ class YouTubeDownloader:
         import validators
 
         if not validators.url(url):
-            st.error("Hi there 👋 URL seems invalid 👽")
+            st.error("URL이 정상적이지 않습니다.")
             st.stop()
 
     @classmethod
@@ -50,8 +50,7 @@ class YouTubeDownloader:
     @classmethod
     def helper_message(cls):
         st.write(
-            "> To save the video to local computer, "
-            "click the vertical ... icon (aka hamburger button) in the bottom-right corner (in the video above) and click download."
+            "영상 화면 우측 하단 ... 버튼을 클릭하면 다운로드 할 수 있습니다."
         )