Use verbose command line flags in empty repository instructions
### Problem to solve
* To my knowledge, this issue affects all products.
* This issue affects the "Command line instructions" in projects with empty repositories
* I don't know which document this exactly is. I would be interested in that information.
* I would like to propose making all command line flags explicit for increased readability, especially to new users.
The current instructions use both abbreviated (e.g. `c`) and verbose (e.g. `--global`) command line flags:
```
Command line instructions
You can also upload existing files from your computer using the instructions below.
Git global setup
git config --global user.name "Bengt Lüers"
git config --global user.email "bengt.lueers@gmail.com"
Create a new repository
git clone git@gitlab.com:bengt/myproject.git
cd myproject
git switch -c main
touch README.md
git add README.md
git commit -m "add README"
git push -u origin main
Push an existing folder
cd existing_folder
git init --initial-branch=main
git remote add origin git@gitlab.com:bengt/myproject.git
git add .
git commit -m "Initial commit"
git push -u origin main
Push an existing Git repository
cd existing_repo
git remote rename origin old-origin
git remote add origin git@gitlab.com:bengt/myproject.git
git push -u origin --all
git push -u origin --tags
```
### Further details
* The command line instructions are potentially one of the first bits of documentation new users of GitLab see.
* Therefore, GitLab should assume as little as possible prior knowledge from the users.
* A good solution will not negatively affect experienced users, who potentially create new projects with empty repositories routinely.
* The command line instructions are faced by all users when creating a "New project" after they choose "Create blank project".
### Proposal
* I would like to propose to more consistently use verbose command line options in these instructions, like so:
```
Command line instructions
You can also upload existing files from your computer using the instructions below.
Git global setup
git config --global user.name "Bengt Lüers"
git config --global user.email "bengt.lueers@gmail.com"
Create a new repository
git clone git@gitlab.com:bengt/myproject.git
cd myproject
git switch --create main
touch README.md
git add README.md
git commit -m "add README"
git push --set-upstream origin main
Push an existing folder
cd existing_folder
git init --initial-branch=main
git remote add origin git@gitlab.com:bengt/myproject.git
git add .
git commit -m "Initial commit"
git push --set-upstream origin main
Push an existing Git repository
cd existing_repo
git remote rename origin old-origin
git remote add origin git@gitlab.com:bengt/myproject.git
git push --set-upstream origin --all
git push --set-upstream origin --tags
```
### Who can address the issue
* I could create a pull request, if I knew which file I would need to edit.
### Other links/references
* None
issue