Added license

LICENSE.txt

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+This is free and unencumbered software released into the public domain.
+
+Anyone is free to copy, modify, publish, use, compile, sell, or
+distribute this software, either in source code form or as a compiled
+binary, for any purpose, commercial or non-commercial, and by any
+means.
+
+In jurisdictions that recognize copyright laws, the author or authors
+of this software dedicate any and all copyright interest in the
+software to the public domain. We make this dedication for the benefit
+of the public at large and to the detriment of our heirs and
+successors. We intend this dedication to be an overt act of
+relinquishment in perpetuity of all present and future rights to this
+software under copyright law.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
+
+For more information, please refer to <https://unlicense.org>

README.MD

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+# 🕒 ShutdownTimer
+ShutdownTimer is an interface for _shutdown.exe_:
+## 👴 User-Friendly
+With a **simple interface**, great to install on your grandfather's pc 😋 
+
+![image](https://user-images.githubusercontent.com/85490958/206051887-d84836c5-4dc9-40cd-8ff6-f1b83e850564.png)
+## 🗲 Lightweight
+You have a poor pc? **That's not a problem!**
+
+![image](https://user-images.githubusercontent.com/85490958/206052669-ec3032bd-a137-4c39-97c7-74fcec14dab8.png)
+
+## 🗁 Open-Source
+You know **exactly what are you installing on your PC!**
+
+## Funcionalities
+
+- [x] Automatically Convert
+- [x] Cancel Existing Timers
+- [ ] Hibernate
+- [ ] Make a coffee
+
+### Automatically Convert
+Shutdown.exe **only accepts seconds** as time scale. But ShutdownTimer can **automatically convert the user entry**! You just need to select the option on _menu_.
+
+![image](https://user-images.githubusercontent.com/85490958/206056739-e8411c83-7a49-40d1-bf21-4a3d40a83e27.png)
+
+### Cancel Existing Timers
+It can also cancel existing timers
+
+![image](https://user-images.githubusercontent.com/85490958/206056602-963b660b-a1a4-460e-b2a3-0ba374d9c4e1.png)
+![image](https://user-images.githubusercontent.com/85490958/206056680-9e429422-90ff-4135-82bb-63b2a649f3df.png)