Add flutter_web samples (#75)

web/filipino_cuisine/README.md

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+A sample that shows a visual recipe catalog for Filipino food.
+
+Contributed as part of the Flutter Create 5K challenge by John Mark Grancapal.
+
+**Asset License**: All images used on this app are under the "CC0 - Creative Commons" license
+
+
+## Developed By
+
+John Mark Grancapal <mark.grancapal@gmail.com>
+Homepage: https://github.com/markgrancapal
+
+
+## License
+
+    Copyright 2019 John Mark Grancapal
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.