Fix the Schedule calendar width

100% width instead of fixed 800px, meaning it won't get cutoff and
resize the page on small screens (especially mobile).
Signed-off-by: Ethan Madison <ethan@ethanmad.com>

content/schedule.md

@@ -7,4 +7,4 @@ noshowdate = true
 
 +++
 
-<iframe src="https://calendar.google.com/calendar/embed?title=University%20of%20Michigan%20Fencing%20Club%20Calendar&amp;mode=WEEK&amp;height=600&amp;wkst=1&amp;bgcolor=%23ffffff&amp;src=eub272o1l4u2jvmm9grh0bv074%40group.calendar.google.com&amp;color=%232952A3&amp;ctz=America%2FNew_York" style="border-width:0" width="800" height="600" frameborder="0" scrolling="no"></iframe>
+<iframe src="https://calendar.google.com/calendar/embed?title=University%20of%20Michigan%20Fencing%20Club%20Calendar&amp;mode=WEEK&amp;height=600&amp;wkst=1&amp;bgcolor=%23ffffff&amp;src=eub272o1l4u2jvmm9grh0bv074%40group.calendar.google.com&amp;color=%232952A3&amp;ctz=America%2FNew_York" style="border-width:0" width="100%" height="600" frameborder="0" scrolling="no"></iframe>