Add LICENSE, editorconfig and gitattributes

Details
=======

- Add `.editoconfig`
- Add `.gitattributes`
- Add `LICENSE.txt` for the MIT License
- Update `README.md` to use yarn during the install

.editorconfig

@@ -0,0 +1,12 @@
+root = true
+
+[*]
+end_of_line = lf
+insert_final_newline = true
+
+[*]
+charset = utf-8
+
+[*.{js,json}]
+indent_style = space
+indent_size = 2

.gitattributes

@@ -0,0 +1,7 @@
+# Exclude this files from the Release archive
+.gitattributes export-ignore
+.gitignore export-ignore
+.editorconfig export-ignore
+README.md export-ignore
+CHANGELOG.md export-ignore
+yarn.lock export-ignore

LICENSE.txt

@@ -0,0 +1,8 @@
+The MIT License (MIT)
+Copyright © 2021 Roberto Mauro
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+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 OR COPYRIGHT HOLDERS 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.

README.md

@@ -1,14 +1,13 @@
 # vdown
 
-**vdown** is a Vimeo downloader that let you download audio/video data from a vimeo 
-stream and combine them into a single video file.
+**vdown** is a Vimeo downloader that let you download audio/video data from a vimeo stream and combine them into a single video file.
 
 ## Install
 
 ```bash
-git clone https://github.com/erremauro/vdown.git .
-cd ./vdown
-npm install
+git clone https://github.com/erremauro/vdown.git
+cd vdown
+yarn install
 ```
 
 ## How to use it