add strings

Author: neilbryson

src/assets/locales/en-US.json

@@ -0,0 +1,6 @@
+{
+  "it_works": "It works !",
+  "instructions": "Now, try clicking the button below.",
+  "next_instructions": "Now, try pressing the Back button of the browser.",
+  "message": "You just pressed the Back button."
+}

src/assets/locales/fr.json

@@ -0,0 +1,6 @@
+{
+  "it_works": "Ça marche !",
+  "instructions": "Cliquez sur le bouton ci-dessous",
+  "next_instructions": "Ensuite, cliquez sur le bouton retour.",
+  "message": "Vous venez de cliquer sur le bouton retour."
+}