added syntex highlighting to local installtion method

 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 6eca6a7..566289a 100644
--- a/README.md
+++ b/README.md
@@ -30,7 +30,7 @@ $ sudo make install
 ```
 
 ### Install it locally
-```
+```bash
 # Download the fontpreview source code, save as fontpreview
 # and make it executeable
 $ curl -L https://git.io/raw_fontpreview > fontpreview && chmod +x fontpreview