[editorial] Fix path-base in Hugo front matter

Author: chalin

mission-vision-values.md

@@ -2,10 +2,7 @@
 linkTitle: Mission, vision, and values
 aliases: [/mission]
 github_repo: &repo https://github.com/open-telemetry/community
-github_subdir: ''
-path_base_for_github_subdir:
-  from: content/en/community/mission\.md
-  to: mission-vision-values.md
+path_base_for_github_subdir: tmp/community
 github_project_repo: *repo
 weight: -10
 --->

roadmap.md

@@ -1,10 +1,9 @@
 <!--- Hugo front matter used to generate the website version of this page:
 linkTitle: Roadmap
+aliases: [/roadmap]
 github_repo: &repo https://github.com/open-telemetry/community
-github_subdir: ''
-path_base_for_github_subdir: content/en/community/
+path_base_for_github_subdir: tmp/community
 github_project_repo: *repo
-aliases: [/roadmap]
 weight: 20
 --->