fix syntax

Author: alistairewj

mimic-iv/buildmimic/sqlite/README.md

@@ -37,7 +37,7 @@ path/to/mimic-iv/
     ├── chartevents.csv.gz
     ├── ...
     └── procedureevents.csv.gz
-
+```
 
 ## Step 2: Edit the script if needed.