use code blocks in readme

README.md

@@ -8,14 +8,16 @@ A simple tool to help make it easier to turn your tweet rants into real blog pos
 ### Usage
 Requires `TWITTER_CONSUMER_KEY` and `TWITTER_CONSUMER_SECRET`, both of which you can only get if you have a registered developer account and an application created for twitter.
 
-    Usage: twit2blog [opts]
+```
+Usage: twit2blog [opts]
 
-    Options:
-      -u, --user   The screen name of the twitter user. E.g. If your twitter is https://twitter.com/foobar, then `foobar`.
-      -t, --thread The ID of the last tweet in your thread. E.g. 12345.
+Options:
+  -u, --user   The screen name of the twitter user. E.g. If your twitter is https://twitter.com/foobar, then `foobar`.
+  -t, --thread The ID of the last tweet in your thread. E.g. 12345.
 
-    For more information read the Github readme:
-      https://github.com/weskerfoot/Twit2Blog#readme
+For more information read the Github readme:
+  https://github.com/weskerfoot/Twit2Blog#readme
+```
 
 Example: `twit2blog -t:1234 -u:alice | pandoc --from=markdown --to=html > thread.html`