03-git/github-how to upload files on GitHub

00-Raw Terminal window (in process)
MacBook-Pro-de-JOHN:Downloads johndoe$ cd 3d-printed-badges-by-clara-and-marie
MacBook-Pro-de-JOHN:3d-printed-badges-by-clara-and-marie johndoe$ touch README.md
MacBook-Pro-de-JOHN:3d-printed-badges-by-clara-and-marie johndoe$ git init
Initialized empty Git repository in /Users/romaindivozzo/Downloads/3d-printed-badges-by-clara-and-marie/.git/
MacBook-Pro-de-JOHN:3d-printed-badges-by-clara-and-marie johndoe$ git add README.md
MacBook-Pro-de-JOHN:3d-printed-badges-by-clara-and-marie johndoe$ git commit -m "first commit"
[master (root-commit) 001b3eb] first commit
 1 file changed, 0 insertions(+), 0 deletions(-)
 create mode 100644 README.md
MacBook-Pro-de-JOHN:3d-printed-badges-by-clara-and-marie johndoe$ git remote add origin https://github.com/fablabdigiscope/3d-printed-badges-by-clara-and-marie.git
MacBook-Pro-de-JOHN:3d-printed-badges-by-clara-and-marie johndoe$ git push -u origin master
Username for 'https://github.com': fablabdigiscope
Password for 'https://fablabdigiscope@github.com': 
Counting objects: 3, done.
Writing objects: 100% (3/3), 218 bytes | 0 bytes/s, done.
Total 3 (delta 0), reused 0 (delta 0)
To https://github.com/fablabdigiscope/3d-printed-badges-by-clara-and-marie.git
 * [new branch]      master -> master
Branch master set up to track remote branch master from origin.
MacBook-Pro-de-JOHN:3d-printed-badges-by-clara-and-marie johndoe$ ls
3d-printed-badges-by-clara-and-marie		README.md					STNG_Badge (repaired) (repaired).gcode-2.txt
3d_printed_cable-holder_by_mathieu_le-goc	STNG_Badge (repaired) (repaired)-2.stl		STNG_Badge-2.stl
MacBook-Pro-de-JOHN:3d-printed-badges-by-clara-and-marie johndoe$ git add STNG_Badge-2.stl
MacBook-Pro-de-JOHN:3d-printed-badges-by-clara-and-marie johndoe$ git add STNG_Badge (repaired) (repaired).gcode-2.txt
-bash: syntax error near unexpected token `('
MacBook-Pro-de-JOHN:3d-printed-badges-by-clara-and-marie johndoe$ ls
3d-printed-badges-by-clara-and-marie		README.md					STNG_Badge_repaired-2.gcode
3d_printed_cable-holder_by_mathieu_le-goc	STNG_Badge-2.stl				STNG_Badge_repaired-2.stl
MacBook-Pro-de-JOHN:3d-printed-badges-by-clara-and-marie johndoe$ git add STNG_Badge_repaired-2.gcode
MacBook-Pro-de-JOHN:3d-printed-badges-by-clara-and-marie johndoe$ git add STNG_Badge_repaired-2.stl
MacBook-Pro-de-JOHN:3d-printed-badges-by-clara-and-marie johndoe$ git commit -m "3d files"
[master 8f8c2de] 3d files
 3 files changed, 36748 insertions(+)
 create mode 100644 STNG_Badge-2.stl
 create mode 100644 STNG_Badge_repaired-2.gcode
 create mode 100644 STNG_Badge_repaired-2.stl
MacBook-Pro-de-JOHN:3d-printed-badges-by-clara-and-marie johndoe$ git remote add origin https://github.com/fablabdigiscope/3d-printed-badges-by-clara-and-marie
fatal: remote origin already exists.
MacBook-Pro-de-JOHN:3d-printed-badges-by-clara-and-marie johndoe$ git remove -v
git: 'remove' is not a git command. See 'git --help'.

Did you mean this?
	remote
MacBook-Pro-de-JOHN:3d-printed-badges-by-clara-and-marie johndoe$ git remote -v
origin	https://github.com/fablabdigiscope/3d-printed-badges-by-clara-and-marie.git (fetch)
origin	https://github.com/fablabdigiscope/3d-printed-badges-by-clara-and-marie.git (push)
MacBook-Pro-de-JOHN:3d-printed-badges-by-clara-and-marie johndoe$ git push
warning: push.default is unset; its implicit value is changing in
Git 2.0 from 'matching' to 'simple'. To squelch this message
and maintain the current behavior after the default changes, use:

  git config --global push.default matching

To squelch this message and adopt the new behavior now, use:

  git config --global push.default simple

See 'git help config' and search for 'push.default' for further information.
(the 'simple' mode was introduced in Git 1.7.11. Use the similar mode
'current' instead of 'simple' if you sometimes use older versions of Git)

Counting objects: 5, done.
Delta compression using up to 4 threads.
Compressing objects: 100% (4/4), done.
Writing objects: 100% (4/4), 461.18 KiB | 0 bytes/s, done.
Total 4 (delta 0), reused 0 (delta 0)
To https://github.com/fablabdigiscope/3d-printed-badges-by-clara-and-marie.git
   001b3eb..8f8c2de  master -> master
MacBook-Pro-de-JOHN:3d-printed-badges-by-clara-and-marie johndoe$