workflow: check with minimum supported version of Hugo (#163)

added build job that checks with the minimum supported version of Hugo

.github/workflows/main.yml

@@ -3,7 +3,7 @@ name: Build with Hugo
 on: [push]
 
 jobs:
-  hugo:
+  hugo-latest:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@master
@@ -18,3 +18,16 @@ jobs:
       - name: Run Hugo
         working-directory: exampleSite
         run: hugo --themesDir ../..
+  hugo-minimum:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@master
+
+      - name: Install Hugo
+        run: |
+          wget "https://github.com/gohugoio/hugo/releases/download/v0.60.0/hugo_extended_0.60.0_Linux-64bit.deb" -O /tmp/hugo.deb
+          sudo dpkg -i /tmp/hugo.deb
+
+      - name: Run Hugo
+        working-directory: exampleSite
+        run: hugo --themesDir ../..