Add note about inline plugins and registration (#8741)

diff --git a/docs/docs/developers/plugins.md b/docs/docs/developers/plugins.md
index e3b280e4d429f3945fb3e9fdf65e434181347761..58c1cdac1b78f4a5a21b71968910e88567d8031d 100644 (file)
--- a/docs/docs/developers/plugins.md
+++ b/docs/docs/developers/plugins.md
@@ -27,6 +27,8 @@ var chart3 = new Chart(ctx, {});
 
 Plugins can also be defined directly in the chart `plugins` config (a.k.a. *inline plugins*):
 
+> Note: *inline* plugins are not registered. Some plugins require registering, i.e. can't be used *inline*.
+
 ```javascript
 var chart = new Chart(ctx, {
     plugins: [{