2025 update (#42)

* Update link names

Some further minor changes, rephrasings and additions

* Use julia 1.11 in workflow

* Update copyright years

Author: AntonReinhard

.github/workflows/jupyterbook.yml

@@ -29,7 +29,7 @@ jobs:
     - name: Set up Julia
       uses: julia-actions/setup-julia@v1
       with:
-        version: '1.9'
+        version: '1.11'
 
     - uses: julia-actions/cache@v1
     - uses: julia-actions/julia-buildpkg@v1

.gitignore

@@ -25,5 +25,6 @@ docs/site/
 
 # Editor and temporary files from Jupyter notebooks / Jupyterbook
 .vscode
-.ipynb_checkpoints
+*/.ipynb_checkpoints
 julia-intro/docs/_build
+Manifest.toml