add cat/dog year converter app

Projects/1-Beginner/Cat-Dog-Year-Converter-App.md

@@ -0,0 +1,30 @@
+# Cat/Dog Year Converter
+
+**Tier:** 1-Beginner
+
+The Cat/Dog Year Converter gives you a sense of how old your pet would be in human years. Input your pet's age and get back how old they would be in human-equivalent years.
+
+Choose your favourite animal: cat or dog, decide how many pet years equal to one human year, and build an app that performs the calculation when given an input.
+
+## User Stories
+
+-   [ ] User can input a number an see it appear
+-   [ ] User can press a "Convert" button to start the calculation
+-   [ ] User can see the converted result of their inputted number
+
+## Bonus features
+
+-   [ ] User can reverse the calculation to get how old a human would be in pet years
+-   [ ] Non-linear calculation: changing the human:animal age ratio for older animals (see aging Wiki below)
+-   [ ] Additional options: indoor vs outdoor pets, factoring in the animal's weight
+
+## Useful links and resources
+
+-   [Omni Calculator](https://www.omnicalculator.com/biology/cat-age)
+-   [Aging in Cats Wiki](https://en.wikipedia.org/wiki/Aging_in_cats)
+-   [Aging in Dogs Wiki](https://en.wikipedia.org/wiki/Aging_in_dogs)
+
+## Example projects
+
+-   [Cat Age Converter by ashley-jelks-truss on GitHub](https://github.com/ashley-jelks-truss/Cat-Age-Converter-Calculator)
+-   [Cat Years Chart](http://catyearschart.com/)

README.md

@@ -46,6 +46,7 @@ required to complete them.
 | [Bin2Dec](./Projects/1-Beginner/Bin2Dec-App.md)                                   | Binary-to-Decimal number converter                         | 1-Beginner |
 | [Border Radius Previewer](./Projects/1-Beginner/Border-Radius-Previewer.md)       | Preview how CSS3 border-radius values affect an element    | 1-Beginner |
 | [Calculator](./Projects/1-Beginner/Calculator-App.md)                             | Calculator                                                 | 1-Beginner |
+| [Cat/Dog Year Converter](./Projects/1-Beginner/Cat-Dog-Year-Converter-App.md)     | Convert your age to cat/dog years                          | 1-Beginner |
 | [Christmas Lights](./Projects/1-Beginner/Christmas-Lights-App.md)                 | Simulate a string of Christmas lights                      | 1-Beginner |
 | [Cause Effect App](./Projects/1-Beginner/Cause-Effect-App.md)                     | Click list item to display item details                    | 1-Beginner |
 | [Color Cycle](./Projects/1-Beginner/Color-Cycle-App.md)                           | Cycle a color value through incremental changes            | 1-Beginner |