add attedence form and course credit calculation rule on the website

index.md

@@ -14,8 +14,11 @@ The course [syllabus is available here]({{ "/assets/doc/" | append: site.current
 
 The seminar is open to Stanford faculty, students, and sponsors.
 
-## Seminar Recordings
-All publically available past seminar recordings can be viewed on our [YouTube Playlist](https://www.youtube.com/playlist?list=PLoROMvodv4rMeercb-kvGLUrOq4HR6BZD). 
+## Attedence Form
+For students taking the class, please fill out this [attendance form](https://tinyurl.com/robosem-winter-25) when attending the seminar to receive credit. You need to fill out 7 attedence to receive credit for the quarter, or make up for it by submitting late paragraphs on the talks you missed via Canvas.
+
+## Seminar Youtube Recordings
+All publically available past seminar recordings can be viewed on our [YouTube Playlist](https://www.youtube.com/playlist?list=PLoROMvodv4rMeercb-kvGLUrOq4HR6BZD). Registered students can access all talk recordings on Canvas.
 
 ## Get Email Notifications
 Sign up for the mailing list: [Click here](https://mailman.stanford.edu/mailman/listinfo/stanfordrobotics)!