Update SLEtoSDF.md

docs/SLEtoSDF.md

@@ -8,11 +8,14 @@ alternative formats (other than those offered on the NORMAN-SLE
 
 ## Step 1: NORMAN-SLE in PubChem Classification Browser
 To start, visit the NORMAN Suspect List Exchange in the 
-PubChem Classification Browser: 
+PubChem Classification Browser : 
 https://pubchem.ncbi.nlm.nih.gov/classification/#hid=101
 
+#### Screenshot: NORMAN-SLE Classification Browser
+
 ![NORMAN-SLE in PubChem Classification Browser](fig/PubChem_Classification_SLE_view.png)
 
-The lists at the top are the subset with specific annotation content, 
+The lists at the top are the subset of the SLE lists with specific 
+classification content, 
 followed by a listing of all lists from S0 to the latest entry.