Add article for SysAdmin day in Emacs

_posts/2017-10-02-add-sysadmin-day-to-emacs-calendar.md

@@ -0,0 +1,27 @@
+---
+layout:    post
+title:     "Add SysAdmin day to Emacs Calendar"
+date:      2017-10-02 09:37:52
+tags:      [emacs]
+published: true
+author:
+    name: Gergely Polonkai
+    email: gergely@polonkai.eu
+---
+I’m a SysAdmin since 1998.  Maybe a bit earlier, if you count managing our home computer.  This
+means [SysAdmin Day](http://sysadminday.com/) is also celebrating me.  However, my Emacs Calendar
+doesn’t show it for some reason.
+
+The solution is pretty easy:
+
+``` lisp
+(add-to-list 'holiday-other-holidays '(holiday-float 7 5 -1 "SysAdmin Day") t)
+```
+
+Now invoke `holidays-list` for any year, choosing “Other” as the category, and there you go:
+
+```
+…
+Friday, July 28, 2017: SysAdmin Day
+…
+```