Don't use metadrop/mkdocs image anymore, use oficial image instead

docker-compose.mkdocs.yaml

@@ -2,11 +2,11 @@
 services:
   mkdocs:
     container_name: "ddev-${DDEV_SITENAME}-mkdocs"
-    image: metadrop/docker-mkdocs:2.0.1
+    image: squidfunk/mkdocs-material:latest
     environment:
       - VIRTUAL_HOST=$DDEV_HOSTNAME
-      - HTTP_EXPOSE=9004:8080
-      - HTTPS_EXPOSE=9005:8080
+      - HTTP_EXPOSE=9004:8000
+      - HTTPS_EXPOSE=9005:8000
     volumes:
       - $DDEV_APPROOT/docs:/docs
       - .:/mnt/ddev_config:ro
@@ -20,7 +20,7 @@ services:
       ddev_default: null
       default: null
     expose:
-      - "8080"
+      - "8000"
   web:
    links:
      - mkdocs:mkdocs

tests/test.bats

@@ -15,7 +15,7 @@ setup() {
 
 health_checks() {
   echo "Checking mkdocs health" >&3
-  ddev exec wget http://mkdocs:8080 -q -O - | grep Welcome | grep -m1 "Welcome to Mkdocs"
+  ddev exec wget http://mkdocs:8000 -q -O - | grep Welcome | grep -m1 "Welcome to Mkdocs"
 }
 
 check_build_mkdocs() {