Introduce a python script to apply template

Author: nikomatsakis

template.py

@@ -0,0 +1,21 @@
+#!/usr/bin/python
+
+"""
+Use like this:
+
+    pbpaste | python template.py > litmus_text/example.md
+
+to produce a modified copy of the template.
+"""
+
+import sys
+
+source_code_lines = sys.stdin.read().strip().split("\n")
+
+for line in open("template.md"):
+    line = line.strip()
+    if line == "rust source code":
+        for source_code_line in source_code_lines:
+            print source_code_line
+    else:
+        print line