fix lighthouse, closes #745 (#749)

also fixes try-jupyter link, no more retro

.github/workflows/lighthouserc.json

@@ -14,7 +14,7 @@
       "assertions": {
         "categories:performance": ["error", { "minScore": 0.90 }],
         "categories:accessibility": ["error", { "minScore": 0.95 }],
-        "categories:best-practices": ["error", { "minScore": 0.95 }],
+        "categories:best-practices": ["error", { "minScore": 0.90 }],
         "categories:seo": ["error", { "minScore": 0.95 }]
       }
     }

.github/workflows/validate.yml

@@ -99,7 +99,7 @@ jobs:
           name: Built site ${{ github.run_number }}
           path: ./_site
       - name: Audit with Lighthouse
-        uses: treosh/lighthouse-ci-action@v8
+        uses: treosh/lighthouse-ci-action@v10
         with:
           configPath: ".github/workflows/lighthouserc.json"
           temporaryPublicStorage: true

try.html

@@ -37,7 +37,7 @@
       description: The original web application for creating and sharing computational documents
       src: try/python.svg
       alt: Python logo - Launch Jupyter Notebook demo Binder
-      url: https://jupyter.org/try-jupyter/retro/notebooks/?path=notebooks/Intro.ipynb
+      url: https://jupyter.org/try-jupyter/notebooks/?path=notebooks/Intro.ipynb
 
     - title: JupyterLite
       description: JupyterLite (Wasm powered Jupyter) deployed as static GitHub Pages