[DOCS] Fix typos in proxy examples (#1015)

Also include global http -> https redirection in Traefik 2.x example.

docs/deployment/supported-proxies/haproxy.md

@@ -45,7 +45,7 @@ You can separate each subdomain with a `|` in the regex, for example:
 backend upon successful authentication, for example:
     ```
     acl host-jenkins hdr(host) -i jenkins.example.com
-    acl host-jenkins hdr(host) -i nextcloud.example.com
+    acl host-nextcloud hdr(host) -i nextcloud.example.com
     acl host-phpmyadmin hdr(host) -i phpmyadmin.example.com
     ```
 3. Add backend route for your service(s), for example:

docs/deployment/supported-proxies/nginx.md

@@ -143,7 +143,7 @@ server {
     location / {
         set $upstream_authelia http://authelia:9091; # This example assumes a Docker deployment 
         proxy_pass $upstream_authelia;
-        include /config/nginx/proxy.conf; # 
+        include /config/nginx/proxy.conf;
     }
 }
 ```

docs/deployment/supported-proxies/traefik2.x.md

@@ -33,7 +33,7 @@ networks:
 services:
 
   traefik:
-    image: traefik:v2.1.2
+    image: traefik:v2.2
     container_name: traefik
     volumes:
       - /var/run/docker.sock:/var/run/docker.sock
@@ -54,6 +54,8 @@ services:
       - '--providers.docker.exposedByDefault=false'
       - '--entrypoints.http=true'
       - '--entrypoints.http.address=:80'
+      - '--entrypoints.http.http.redirections.entrypoint.to=https'
+      - '--entrypoints.http.http.redirections.entrypoint.scheme=https'
       - '--entrypoints.https=true'
       - '--entrypoints.https.address=:443'
       - '--log=true'