made sure free demo page redirects to sign up page

Author: DagaVedant

README.md

@@ -125,4 +125,6 @@ You dont even need Python installed to follow the lessons in the browser, but if
 
 Its built by Vedant Daga [https://github.com/DagaVedant](https://github.com/DagaVedant)
 
-Also using different fonts from [Google Fonts](https://fonts.google.com)
+Also using different fonts from [Google Fonts](https://fonts.google.com)
+
+I have used AI to help with coding (mainly supabase setup) and other integrations, but most of the design was done by me like Figma design for website and I made all the questions and information on the lessons

lesson.html

@@ -1093,7 +1093,7 @@ <h1 id="h1"></h1>
       const i = +btn.dataset.index;
       const fb = document.getElementById(`practice-feedback-${i}`);
       fb.className = 'practice-ai-row show';
-      fb.innerHTML = 'Create a free account to save your work and get AI feedback — <a href="login.html">sign in</a>.';
+      fb.innerHTML = 'Create a free account to save your work and get AI feedback — <a href="signup.html">sign in</a>.';
     });
   });
 }
@@ -1103,7 +1103,7 @@ <h1 id="h1"></h1>
   const { data: { session } } = await db.auth.getSession();
 
   if (!session) {
-    if (!isFree) { window.location.href = 'login.html'; return; }
+    if (!isFree) { window.location.href = 'signup.html'; return; }
     enablePreviewMode();
     return;
   }