Resolve "Fix font assets path"

Closes #10 (closed)

pubspec.yaml

@@ -34,3 +34,15 @@ dev_dependencies:
 
 flutter:
   uses-material-design: true
+
+  fonts:
+    - family: Nunito
+      fonts:
+        - asset: packages/flutter_custom_toolbox/fonts/Nunito-Bold.ttf
+          weight: 700
+        - asset: packages/flutter_custom_toolbox/fonts/Nunito-Medium.ttf
+          weight: 500
+        - asset: packages/flutter_custom_toolbox/fonts/Nunito-Regular.ttf
+          weight: 400
+        - asset: packages/flutter_custom_toolbox/fonts/Nunito-Light.ttf
+          weight: 300