fixing gitignore and writing the Readme.

.gitignore

@@ -1,3 +1,3 @@
 /.idea/
-/vendor/
+vendor/
 composer.lock

README.md

@@ -1,2 +1,40 @@
-# making-sessions
-Library for organizing list of events in sessions
+# MakingSessions
+This library has one goal: **organizing list of events in sessions**. You can add "events" with a start and end or, a duration. This library is made for separating the events for types of events.
+
+The origin of this library is sort the actions when I work, each project is a different type of event. With this library now I can see how much time work in each project.
+
+#Using the library
+You start initialising the _Maker_ class and adding the events:
+
+    use Marioquartz\MakingSessions\Maker;
+    use Marioquartz\MakingSessions\Event;
+
+    $maker=new Maker();
+    foreach ($json as $item) {
+        $event=new Marioquartz\MakingSessions\Event();
+        $event
+            ->setStart($start) //start can be a timestamp or a DateInmutable
+            ->setDuration(60)
+            ->setType("example");
+        $maker->add($event);
+    }
+
+Generate the list of sessions with their events is easy:
+
+    $sessions=$maker->getSessions();
+
+Sessions now have a list of sessions, that can be iterated:
+
+    foreach($sessions as $sessiong) {
+        echo $session->getStart(); // Start of the session returned as timestamp
+        echo $session->getEnd(); //End as timestamp
+        echo $session->getDuration() // Duration in seconds
+        echo $session->getType(); // Type of the events inside
+        foreach ($session->getEvents() as $event) {
+            //events have the same functions: getStart(), getEnd(), getDuration() and getType()
+        }
+    }
+
+# Helping
+This is my first real library. I don't have much experience, so of course this library have a big room for make better code or usefulness.
+If you are a kind person, and you think have an idea or if you have a bug im all ears.