readme markdown format

base/readme_base.md

@@ -0,0 +1,3 @@
+# Base
+
+add a `firered(u)` version 1.0 rom named `bpre0.gba` in this folder in order for the build to work.

base/readme_base.txt

@@ -1,3 +0,0 @@
-###README_BASE###
-
-add a firered(u) version 1.0 rom named "bpre0.gba" in this folder in order for the build to work.