Update nomination submission link for Educator Award

Author: nikivazou

Awards/Educator.md

@@ -25,7 +25,7 @@ directed to the SIGPLAN Awards co-Chairs.
 
 #### Nominations
 
-Please use <http://awards.sigplan.org/> to submit nominations.
+Please use <https://sigplan-educator26.hotcrp.com> to submit nominations.
 Nominations submitted on or before January 15th will be considered for
 award that year.  A nomination for the Distinguished Educator Award
 that is not selected will remain in consideration for a total of three