Update free-courses-pt_BR.md (#3279)

free-courses-pt_BR.md

@@ -58,6 +58,7 @@
 
 ### Ionic
 
+* [Desenvolvimento com Ionic 3 + WebComponents com StencilJS](https://www.udemy.com/ionic-3-e-webcomponents-com-stenciljs/) - Gabriel Barreto (Udemy)
 * [Ionic 3 para iniciantes](https://www.udemy.com/ionic-3-para-iniciantes/) - Charles dos Santos França (Udemy)