diff --git a/dev-notes.md b/dev-notes.md
new file mode 100644
index 00000000..9816dda6
--- /dev/null
+++ b/dev-notes.md
@@ -0,0 +1,61 @@
+# Actor notes
+
+> The Actor#getData default implementation gives you the following for use in sheet rendering:
+
+```
+  actor -> the Actor instance
+  data -> a cloned copy of Actor#data
+  items -> a cloned copy of Actor#data#items
+  effects -> a cloned copy of Actor#data#effects
+```
+
+> if all you need is a safe copy of `Actor#data`, you'll be much better off by simply defining your own function and avoiding all the wasted work that the parent class does which will slow down your sheet
+```js
+getData(options) {
+  return {
+    data: foundry.utils.deepClone(this.object.data)
+  }
+}
+```
+
+who knows, maybe you don't even need to copy your actor data, skip the copy and it's even faster:
+```js
+getData(options) {
+  return {
+    data: this.object.data
+  }
+}
+```
+
+
+Atropos19/02/2021
+There are two recommended ways to create owned items in 0.8.0:
+```js
+await Item.create(itemData, {parent: actor});
+await actor.createEmbeddedDocuments("Item", itemDataArray);
+```
+
+
+You can update an embedded item in one of two ways:
+```js
+//Method 1:
+
+const item = actor.items.get(itemId);
+item.update(data);
+
+//Method 2:
+actor.updateEmbeddedDocuments("Item", [{_id: itemId, ...}]);
+```
+
+
+I noticed adding an ActiveEffect to an actor in code using
+
+```js
+this.createEmbeddedDocuments('ActiveEffect', [effet], options);
+this.applyActiveEffects();
+```
+
+Atropos — Aujourd’hui à 14:42
+Two notes on this:
+1. You don't actually need to call this.applyActiveEffects() because this will happen automatically whenever an effect is created/updated/deleted
+2. If you want to suppress the automatic display of the sheet for the newly created document, you can pass options.renderSheet = false as part of your options object
\ No newline at end of file
diff --git a/templates/chat-resultat-chant.html b/templates/chat-resultat-chant.html
index 4ebcacbc..eb2b072e 100644
--- a/templates/chat-resultat-chant.html
+++ b/templates/chat-resultat-chant.html
@@ -1,6 +1,6 @@
 <img class="chat-icon" src="{{competence.img}}" alt="{{oeuvre.data.competence}}" />
 <h4>
-  {{alias}} tente de chanter la chanson : {{oeuvre.name}} (niveau {{oeuvre.data.niveau}})
+  {{alias}} tente de chanter : {{oeuvre.name}} (niveau {{oeuvre.data.niveau}})
 </h4>
 {{> "systems/foundryvtt-reve-de-dragon/templates/chat-infojet.html"}}
 <hr>