Merge pull request 'Update 'README.md'' (#5) from imri-gitignore-explain-fix2 into main

Reviewed-on: #5

README.md

@@ -13,3 +13,40 @@ git config user.email "john@doe.org"
 ```
 
 ## Test Commit
+
+
+
+## Creating a new repository on the command line
+
+```bash
+touch README.md
+git init
+git checkout -b main
+git add README.md
+git commit -m "first commit"
+git remote add origin https://git.eurobytes.eu/imri/Test.git
+git push -u origin main
+```
+## Pushing an existing repository from the command line
+
+```bash
+git remote add origin https://git.eurobytes.eu/imri/Test.git
+git push -u origin main
+```
+# How do I make Git forget about a file that was tracked, but is now in .gitignore?
+
+`.gitignore` will prevent untracked files from being added (without an `add -f`) to the set of files tracked by Git. However, Git will continue to track any files that are already being tracked.
+
+To stop tracking a file, we must remove it from the index:
+
+    git rm --cached <file>
+
+To remove a folder and all files in the folder recursively:
+
+    git rm -r --cached <folder>
+
+The removal of the file from the head revision will happen on the next commit.
+
+**WARNING: While this will not remove the physical file from your local machine, it will remove the files from other developers' machines on their next `git pull`.**
+
+https://stackoverflow.com/a/1274447/1148529