fixes date

docs/presentations/2018_04_17/main.tex

@@ -33,7 +33,7 @@
 \title[$e$ Seeding Validation]{Offline Electron Seeding Validation \-- Update}
 \author[C. Fangmeier]{\textbf{Caleb Fangmeier} \\ Ilya Kravchenko,  Greg Snow}
 \institute[UNL]{University of Nebraska \-- Lincoln}
-\date{EGM general meeting \textbf{CMS week} | April 17, 2018}
+\date{EGM general meeting \textbf{CMS week} | April 18, 2018}
 
 \titlegraphic{%
 \begin{figure}