Remove typos in code of conduct

Author: sportluffi

README.md

@@ -12,9 +12,9 @@ See <https://os2iot.readthedocs.io/en/latest/> for the pretty version.
 
 ## Code of conduct
 
-- [x] Be carefull <br/>
-- [x] Be respectfull <br/>
-- [x] Be open <br/>
+- [x] Be careful
+- [x] Be respectful
+- [x] Be open
 - [x] When in doubt or when disagreements arise - consult others
 
 See <https://github.com/OS2offdig/about/blob/main/CODE_OF_CONDUCT.md> for the full code of conduct in danish.