added small workshop on ec2 hosting during a techtue

content/events/ec2workshop/001.md

+---
+startdate:  2018-12-17
+starttime: "19:00"
+linktitle: "hosting on Amazon EC2"
+title: "hosting on Amazon EC2"
+price: ""
+image: "techtuesday.png"
+eventtype: "Workshop"
+location: "HSBXL"
+---
+
+
+A bunch of people have expressed an interest in a base explanation of hosting sites and services in Amazon ec2 instances 
+so we will have an hour or 2 looking at the different base components. 
+
+We will be looking at 
+* ec2 instances (classic virtual machines) 
+* rds instances (used to host databases) 
+* ELB load balancing between machine 
+* security groups 
+