add a new coding idea: decimal to binary

Projects/1-Beginner/Dec2Bin.md

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+# Dec2Bin
+
+**Tier:** 1-Beginner
+
+Binary is the number system all digital computers are based on.
+Therefore it's important for developers to understand binary, or base 2,
+mathematics. The purpose of Bin2Dec is to provide practice and
+understanding of how binary calculations.
+
+Dec2Bin allows the user to enter integers and displays its binary
+
+This challenge requires that the developer implementing it follow these
+constraints:
+
+-  Only integer datatype is allowed as the input
+-  Getting binary of a particular integer in the string must be calculated using a single mathematical function. It's up to you to figure out which function to use.
+-  Only strings are allowed as the output binary
+
+## User Stories
+
+-   [ ] User can any integer except just 0 or 1
+-   [ ] User must be notified if 0 or 1 was entered
+-   [ ] User views the results in a single output field containing the binary (base 2) equivalent of the decimal that was entered
+
+
+## Bonus features
+
+-   [non-numeric charecters to binary] We can give option to a user to convert a group of non-numeric charecters to binary by encoding to ascii or unicode
+-   [click here for ascii information](https://en.wikipedia.org/wiki/ASCII)
+-   [click here for unicode information](https://en.wikipedia.org/wiki/Unicode)
+
+## Useful links and resources
+
+[Binary number system](https://en.wikipedia.org/wiki/Binary_number)
+
+## Example projects
+- [decimal to binary program geeks for geeks] (https://www.geeksforgeeks.org/dsa/program-binary-decimal-conversion/)
+
+# HAPPY CODING!!
+

README.md

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 | Name                                                                              | Short Description                                          | Tier       |
 | --------------------------------------------------------------------------------- | ---------------------------------------------------------- | ---------- |
 | [Bin2Dec](./Projects/1-Beginner/Bin2Dec-App.md)                                   | Binary-to-Decimal number converter                         | 1-Beginner |
+| [Dec2Bin](./Projects/1-Beginner/Dec2Bin.md)                                       | Decimal-to-Binary 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 |
 | [Christmas Lights](./Projects/1-Beginner/Christmas-Lights-App.md)                 | Simulate a string of Christmas lights                      | 1-Beginner |