Update app.py

app.py

@@ -168,7 +168,7 @@ def main():
 	
         
   st.markdown("""
-    <h3 style="font-size:16px; color: #9f9f9f; text-align: center">Link to post <a href='https://ajitrajasekharan.github.io/2021/01/02/my-first-post.html' target='_blank'>describing this approach </a></h3>
+    <h3 style="font-size:16px; color: #7f7f7f; text-align: center">Link to post <a href='https://ajitrajasekharan.github.io/2021/01/02/my-first-post.html' target='_blank'>describing this approach </a></h3>
   """, unsafe_allow_html=True)