feat: try to get docs working again using mathlib style upload artifact

Instead of pushing to a branch, upload docs as an artifact,
which does not have a 100MB push limit.

.github/workflows/doc.yml

@@ -25,8 +25,14 @@ jobs:
       - name: Generate docs 📜
         run: |
           ./docgen.sh
-      - name: Deploy 🚀
-        uses: JamesIves/github-pages-deploy-action@v4
+
+# stolen from mathlib: https://github.com/leanprover-community/mathlib4_docs/blob/1f4ea7657bc377b4298fd400e567471d3a248b2d/.github/workflows/docs.yaml#L79-L86
+      - name: Upload artifact 📁
+        uses: actions/upload-pages-artifact@v1
         with:
-          folder: build/doc # The folder the action should deploy.
+          path: 'build/doc'
+
+      - name: Deploy to GitHub Pages 🚀
+        id: deployment
+        uses: actions/deploy-pages@v1
 

lake-manifest.json

@@ -25,6 +25,14 @@
     "name": "partax",
     "inputRev?": "master",
     "inherited": false}},
+  {"git":
+   {"url": "https://github.com/leanprover/doc-gen4",
+    "subDir?": null,
+    "rev": "8bccb92b531248af1b6692d65486e8640c8bcd10",
+    "opts": {},
+    "name": "«doc-gen4»",
+    "inputRev?": "8bccb92b531248af1b6692d65486e8640c8bcd10",
+    "inherited": false}},
   {"git":
    {"url": "https://github.com/leanprover/std4",
     "subDir?": null,
@@ -56,5 +64,29 @@
     "opts": {},
     "name": "proofwidgets",
     "inputRev?": "v0.0.19",
+    "inherited": true}},
+  {"git":
+   {"url": "https://github.com/xubaiw/CMark.lean",
+    "subDir?": null,
+    "rev": "0077cbbaa92abf855fc1c0413e158ffd8195ec77",
+    "opts": {},
+    "name": "CMark",
+    "inputRev?": "main",
+    "inherited": true}},
+  {"git":
+   {"url": "https://github.com/fgdorais/lean4-unicode-basic",
+    "subDir?": null,
+    "rev": "f09250282cea3ed8c010f430264d9e8e50d7bc32",
+    "opts": {},
+    "name": "«lean4-unicode-basic»",
+    "inputRev?": "main",
+    "inherited": true}},
+  {"git":
+   {"url": "https://github.com/hargonix/LeanInk",
+    "subDir?": null,
+    "rev": "2447df5cc6e48eb965c3c3fba87e46d353b5e9f1",
+    "opts": {},
+    "name": "leanInk",
+    "inputRev?": "doc-gen",
     "inherited": true}}],
  "name": "SSA"}