Update 'README.md'

README.md

@@ -17,16 +17,17 @@ This project is intended to compute an estimated value of risk for a given datab
         
 ## Usage
 
-*Generate The merged dataset
+**Generate The merged dataset**
 
     python risk.py create --i_dataset <in dataset|schema> --o_dataset <out dataset|schema> --table <name> --path <bigquery-key-file>  --key <patient-id-field-name> [--file ]
 
 
-* * Compute risk (marketer, prosecutor)
+**Compute risk (marketer, prosecutor)**
 
     python risk.py compute --i_dataset <dataset> --table <name> --path <bigquery-key-file>  --key <patient-id-field-name> 
 ## Limitations
     - It works against bigquery for now
+    
     @TODO:    
         - Need to write a transport layer (database interface)
         - Support for referential integrity, so one table can be selected and a dataset derived given referential integrity