fix: Capitalization in toc (#5024)

Signed-off-by: Regina Scott <rescott@redhat.com>

mkdocs.yml

@@ -9,6 +9,8 @@ theme:
     text: 'Work Sans'
   logo: 'assets/logo.png'
   favicon: 'assets/favicon.png'
+  language: en-custom
+  custom_dir: overrides
 google_analytics:
 - 'UA-105170809-2'
 - 'auto'

overrides/partials/language/en-custom.html

@@ -0,0 +1,3 @@
+{% macro t(key) %}{{ {
+  "toc.title": "Table of Contents"
+}[key] }}{% endmacro %}