diff --git a/Wolf-tutorial-with-the-OBITools3.md b/Wolf-tutorial-with-the-OBITools3.md
index be268da..9a8c8c1 100644
--- a/Wolf-tutorial-with-the-OBITools3.md
+++ b/Wolf-tutorial-with-the-OBITools3.md
@@ -119,15 +119,15 @@ Otherwise, to build the database yourself from the start:
 
 		obi import --embl EMBL wolf/embl_refs
 
-For EMBL files, you can give the path to a directory with several EMBL files.
+    For EMBL files, you can give the path to a directory with several EMBL files.
 
-**Note:** The reference database can be built in another DMS.
+    **Note:** The reference database can be built in another DMS.
 
 3. Download the taxonomy:
 
 		wget https://ftp.ncbi.nlm.nih.gov/pub/taxonomy/taxdump.tar.gz
 
-  Check the md5, as files downloaded from the NCBI are often corrupted on some networks. Compare https://ftp.ncbi.nlm.nih.gov/pub/taxonomy/taxdump.tar.gz.md5 with:
+    Check the md5 sum, as files downloaded from the NCBI are often corrupted on some networks. Compare https://ftp.ncbi.nlm.nih.gov/pub/taxonomy/taxdump.tar.gz.md5 with:
 
 		md5sum taxdump.tar.gz