Apply Git learnings, update subrepo advice

1 files changed, 3 insertions, 11 deletions

diff --git a/programming/git/git_advice.md b/programming/git/git_advice.md
index 2df2e07d..7dd19818 100644
--- a/programming/git/git_advice.md
+++ b/programming/git/git_advice.md
@@ -7,19 +7,11 @@ Configure your system so that `git commit` opens your preferred editor.
 With `git commit -v` you can see your commit diff while writing your commit message.
 This helps you review that your commit is correct and write a better commit message.
 
-## Use a global gitignore
+## Use gitignore properly
 
-See <https://git-scm.com/book/en/v2/Customizing-Git-Git-Configuration.html#_core_excludesfile>.
+See <https://git-scm.com/docs/gitignore>.
 
-I recommend that the `.gitignore` in a Git repository should only include files that the "supported" procedures for working of your repository generate.
-For example, `.gitignore` should exclude files generated by running or compiling the project.
-
-If your editor or operating system generates files in the repository, I suggest those are not excluded by the `.gitignore` in the repository, but on your personal global gitignore.
-
-This is more efficient:
-
-* You only have to add exclusions that you need once.
-* The project `.gitignore` is smaller and requires less mental overhead to maintain.
+Note that by default, Git defaults to `$XDG_CONFIG_HOME/git/ignore` or `$HOME/.config/git/ignore`.
 
 ## Use the modern Git commands (or teach them)