Index: Add alert with practice start information

Signed-off-by: Ethan Madison <ethan@ethanmad.com>

content/_index.md

@@ -2,6 +2,10 @@
 title = "_index"
 +++
 
+<div class="alert alert-warning">
+    <strong>Fall 2018 practice begins Wednesday, September 5th</strong> for returning members and experienced fencers.  Beginners may attend practice after our mass meeting. Stay tuned for announcements! More information available on <a href="schedule/">our schedule</a>.
+</div>
+
 <div class="alert alert-info">
     University of Michigan Fencing has won the USACFC College Fencing National Championships <a href="results/2016-2017/#usacfc2017" class="alert-link">f</a><a href="results/2015-2016/#usacfc2016" class="alert-link">o</a><a href="results/2014-2015/#usacfc2015" class="alert-link">u</a><a href="results/2012-2013/#usacfc2013" class="alert-link">r</a> out of the past six years!
 </div>