Merge branch 'develop' into 'master'

[release] Regular merge of develop

See merge request R3/school/git/basic-practice-pages!24

attendees/XinHE.md

+Xin HE

attendees/firstnameLastname.md

 # Firstname Lastname
 
-Hello, I am an attendee.
\ No newline at end of file
+Hello, I am an attendee.

attendees/marieFossepre.md

+# Marie  Fossepre
+
+Hello I'm an attendee

attendees/xinhuiwang.md

+
+Xinhui Wang, nice course!