Fix librusc/README.md diagram

mattico · web-flow · commit 5bafba475926 · 2017-09-20T14:08:30.000-05:00
diff --git a/src/librustc/README.md b/src/librustc/README.md
@@ -37,7 +37,7 @@ incremental improves that may change.)
 
 The dependency structure of these crates is roughly a diamond:
 
-````
+```
                   rustc_driver
                 /      |       \
               /        |         \
