Make sure non-English language help redirects to the English version (for now).

ntoll · ntoll · commit e67eeff19781 · 2018-08-01T16:07:15.000+01:00
diff --git a/_config.yml b/_config.yml
@@ -14,6 +14,8 @@ author :
   name : Nicholas H.Tollervey
   github : mu-editor
   twitter : ntoll
+plugins:
+  - jekyll-redirect-from
 
 # The production_url is only used when full-domain names are needed
 # such as sitemap.txt 
diff --git a/en/help/1.0.md b/en/help/1.0.md
@@ -1,6 +1,13 @@
 ---
 layout: default
 title: Help for Mu 1.0.*
+redirect_from:
+  - /de/help/1.0
+  - /es/help/1.0
+  - /fr/help/1.0
+  - /ja/help/1.0
+  - /pt/help/1.0
+  - /zh/help/1.0
 ---
 
 # Help for Mu 1.0
