explaining events in groupie trackers according to an issue

subjects/groupie-tracker/README.md

@@ -14,10 +14,11 @@ Groupie Trackers consists on receiving a given API and manipulate the data conta
 
   - And the last one, `relation`, does the link between all the other parts, `artists`, `dates` and `locations`.
 
-- Given all this you should build a user friendly website where you can display the bands info through several data visualizations (examples : blocks, cards, tables, list, pages, graphics, etc). It is up to you to decide which info you will present and how you will display it.
+- Given all this you should build a user friendly website where you can display the bands info through several data visualizations (examples : blocks, cards, tables, list, pages, graphics, etc). It is up to you to decide how you will display it.
 
-- This project also focuses on the creation of events and on their visualization.
+- This project also focuses on the creation of events/actions and on their visualization.
 
+  - For now the event/action we want you to do is known as a client call to the server ([client-server])(https://en.wikipedia.org/wiki/Request%E2%80%93response). We can say it is a feature of your choice that needs to trigger an action.
   - An event consists in a system that responds to some kind of action triggered by the client, time, or any other factor.
 
 ### Instructions
@@ -42,4 +43,4 @@ This project will help you learn about :
 - [JSON](https://www.json.org/json-en.html) files and format.
 - HTML.
 - Event creation and display.
-  - [Events](https://developer.mozilla.org/en-US/docs/Learn/JavaScript/Building_blocks/Events).
+  - [Client-server](https://developer.mozilla.org/en-US/docs/Learn/Server-side/First_steps/Client-Server_overview).

subjects/groupie-tracker/audit/README.md

@@ -2,9 +2,13 @@
 
 ###### Has the requirement for the allowed packages been respected? (Reminder for this project: only [standard packages](https://golang.org/pkg/))
 
-###### Is the data from the artists being used?
+###### Is the data from the `artists` being used?
 
-###### Is data from the relations being used?
+###### Is the data from the `locations` being used?
+
+###### Is the data from the `dates` being used?
+
+###### Is data from the `relations` being used?
 
 ##### Try to see the "members" for the artist/band `"Queen"`
 
@@ -58,9 +62,9 @@
 
 ###### Does it present the right members as above?
 
-##### Try to trigger an event using some kind of action (ex: Clicking the mouse over a certain element, pressing a key on the keyboard, resizing or closing the browser window, a form being submitted, an error occurring, etc).
+##### Try to trigger an event/action using some kind of action (ex: Clicking the mouse over a certain element, pressing a key on the keyboard, resizing or closing the browser window, a form being submitted, an error occurring, etc).
 
-###### Does the event responds as expected?
+###### Does the event/action responds as expected?
 
 ###### Did the server behaved as expected?(did not crashed)
 
@@ -70,8 +74,6 @@
 
 ###### Are all the pages working? (Absence of 404 page?)
 
-###### Does the project handle [HTTP status 400 - Bad Requests](https://kinsta.com/knowledgebase/400-bad-request/#causes)?
-
 ###### Does the project handle [HTTP status 500 - Internal Server Errors](https://www.restapitutorial.com/httpstatuscodes.html)?
 
 ###### Is the communication between server and client well established?