doc/Install.md: fix typo within ACL section

diff --git a/doc/Install.md b/doc/Install.md
index 61c102e98e6e267043518e9a1f4df77ab31d2e48..8bbfdd99ce2fa5bd29e155a8d37f6f5dd61f2e07 100644 (file)
--- a/doc/Install.md
+++ b/doc/Install.md
@@ -471,7 +471,7 @@ You tried to upload an image up to 100kB and it failed.
 
 You may not have the ownership or file mode set correctly if you are using the file system storage backend.
 
-Change the backend to database. If this solves it, that that is was needs to be fixed.
+Change the backend to database. If this solves it, that is what needs to be fixed.
 
 ### Error uploading large files