1 files changed, 3 insertions, 0 deletions
diff --git a/README.md b/README.md
index c86f143..ed491b9 100644
--- a/README.md
+++ b/README.md
@@ -15,12 +15,14 @@ HTTPS credentials for the API, that you can create inside Gerrit.
 
 Here `$` represents your shell prompt:
 
+    ::shell
     $ export GER2ERR_SERVER=https://your.intranet.local/gerrit
     $ export GER2ERR_USERID=yuzer
     $ export GER2ERR_PASSWORD=ApTKT7YA16sg5cza31mx
 
 Now we can get some comments:
 
+    ::txt
     $ ger2err I62b7e3e79fbeaece243eff2f369b3a90fae9628d
     comments from patch set 1
     lib/parser/scan.c:1357:20: unresolved comment by Co Worker (co.worker)
@@ -45,6 +47,7 @@ to look for `txrlisp` in the `PATH`. Just make it executable and use it.
 
 You can compile it if you want.
 
+    ::txt
     $ txr --compile=ger2err:ger2err.out
 
 Now `ger2err.out` is a compiled version you can install as `ger2err`