application-template.md: Make GSoC application template dynamic

Have the year on the GSoC application template on the FAQ page change based on the month. If it's past the month set in the config (set to June), the page will show the next year, otherwise it will show the current year.

Closes #671

Author: samuelpiltch

_config.yml

@@ -6,6 +6,8 @@ baseurl: ""  # the subpath of your site, e.g. /blog
 url: ""  # the base hostname & protocol for your site
 githuburl: "https://github.com/coala/projects"
 
+gsoc_switch_month: 6
+
 plugins:
   - jekyll-netlify
 

_faq/application-template.md

@@ -1,8 +1,12 @@
 ---
 question: "Do you have an application template?"
 ---
-coala 2018 Application Template
-===============================
+{% assign month = "now" | date: "%-m" | plus: 0 %}
+{% if month >= site.gsoc_switch_month %}
+# coala {{ "now" | date: "%Y" | plus: 1 }} Application Template
+{% else %}
+# coala {{ "now" | date: "%Y" }} Application Template
+{% endif %}
 
 ```
 Student Info