Update README.md

Author: bojanpy

README.md

@@ -8,6 +8,10 @@ PyCon Balkan website is an open source project and welcomes contributions.
 
 To get started follow the steps above.
 
+## Custom design for PyCon Years
+
+As this (custom loader)[https://github.com/PythonBalkan/pyconbalkan/pull/145] MR introduced if you want to make a custom template changes for a conference year, please use template inheritence by adding {year}_template_name.html it will be loaded in favor of that year, and your changes will be visible.
+
 ## Get up and running
 
 1. Clone this repo