added Documentation.yml file. Trying to fix dependency issue in Project.toml.

Author: 00krishna

.github/workflows/Documentation.yml

@@ -0,0 +1,25 @@
+name: Documentation
+
+on:
+  push:
+    branches:
+      - master
+      - 'release-'
+    tags: '*'
+  pull_request:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: julia-actions/setup-julia@latest
+        with:
+          version: '1'
+      - name: Install dependencies
+        run: julia --project=docs/ -e 'using Pkg; Pkg.develop(PackageSpec(path=pwd())); Pkg.instantiate()'
+      - name: Build and deploy
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} # For authentication with GitHub Actions token
+          DOCUMENTER_KEY: ${{ secrets.DOCUMENTER_KEY }} # For authentication with SSH deploy key
+        run: julia --project=docs/ docs/make.jl

docs/Project.toml

@@ -1,6 +1,3 @@
 [deps]
 Documenter = "e30172f5-a6a5-5a46-863b-614d45cd2de4"
 LabelledArrays = "2ee39098-c373-598a-b85f-a56591580800"
-
-[compat]
-Documenter = "0.27"