modify read-me v0.1

README.md

@@ -136,7 +136,7 @@ Therefore, a ***TraceDQL*** query to count the heads produced products is as fol
 The ***type*** parameter is used to generalize the query, allowing it to retrieve products of any specified type.
 In our case, the ***type*** is ***head***, which will be passed as a parameter in the following ***data***:
 <div align="center">
-  <img src="images/data_head_pp.png" alt="Alt text" width="200">
+  <img src="images/data_head_pp.png" alt="Alt text" width="300">
 </div>
 
 ### TraceDQL queries to answer Q3