Update README table

README.md

@@ -38,14 +38,16 @@ The associated leaderboards are here: [OGB leaderboard](https://ogb.stanford.edu
 
 ### Data Properties
 
-| scale | #graphs | average #nodes | average #edges | 
-|---|---|---|---|
-| small | 41,127  | 25.5 | 27.5 |
-|---|---|---|---|
-| average node degree | average cluster coefficient | MaxSCC ratio | graph diameter |
-|---|---|---|---|
-| 2.2 | 0.002 | 0.993 | 12.0 |
-|---|---|---|---|
+| property | value |
+|---|---|
+| scale | small |
+| #graphs | 41,127 |
+| average #nodes | 25.5 |
+| average #edges | 27.5 |
+| average node degree | 2.2 | 
+| average cluster coefficient | 0.002 | 
+| MaxSCC ratio | 0.993 |
+| graph diameter | 12.0 |
 
 ### Data Fields