minor #7852 Update scheme.rst (tomgrandy)

This PR was submitted for the 3.2 branch but it was merged into the 2.7 branch instead (closes #7852).

Discussion
----------

Update scheme.rst

The word "always" in the title should be capitalized.

Commits
-------

88113c7 Update scheme.rst

Author: weaverryan

routing/scheme.rst

@@ -1,7 +1,7 @@
 .. index::
    single: Routing; Scheme requirement
 
-How to Force Routes to always Use HTTPS or HTTP
+How to Force Routes to Always Use HTTPS or HTTP
 ===============================================
 
 Sometimes, you want to secure some routes and be sure that they are always