Update README.md

just spotted this repo and it looks very interesting and a great idea. As I saw a few typos here are the fixes

README.md

@@ -5,14 +5,14 @@ Has your favorite plugin no button? create one your self
 ## features
 
  - Create unlimited amount of buttons with one extension
- - Set autorisation on group level for each button
+ - Set authorisation on group level for each button
  - Open a webpage in a popup.
  - Add a template text with html support under a button
  - Add parameters to use in your template text. 
 
 ## Examples
 
- - Create an help button with work instruction  
+ - Create a help button with work instruction  
 ![Help button](https://user-images.githubusercontent.com/23451105/132658135-185bd1f8-0214-460b-87f2-ccfdda1a47c0.PNG)
 
  - Create a button for a plugin without a button (in this example my Pdfviewer plugin)