diff --git a/docs/10-about.pg b/docs/10-about.md
similarity index 99%
rename from docs/10-about.pg
rename to docs/10-about.md
index 1544eb5..0c4db8a 100644
--- a/docs/10-about.pg
+++ b/docs/10-about.md
@@ -1,4 +1,4 @@
-About
+### About
 
 Mike Gerwitz is a [free (as in freedom) software][0] [hacker][1] and activist
 with an insatiable lust for the command line of a [GNU][2] operating system.