Update documentation and permalinks for consistency and clarity

- Changed references in markup.md to update "data.html" to "data/" for clarity.
- Updated metadata.md to correct the link to the general documentation.
- Modified navbar.md to ensure stub values match the new permalink structure.
- Adjusted tables.md to reflect the new permalink for the table visualization page.
- Updated about.md to change the permalink from "/about.html" to "/about/" and revised content for clarity and impact.
- Changed browse.md permalink from "/browse.html" to "/browse/" for consistency.
- Added copyright.md page with copyright information and terms of use.
- Updated data.md to change permalink from "/data.html" to "/data/" and added introductory content.
- Created donate.md page to facilitate donations and acknowledge supporters.
- Updated locations.md permalink from "/locations.html" to "/locations/" for consistency.
- Changed map.md permalink from "/map.html" to "/map/" for uniformity.
- Added erasure.md page discussing the historical context of Black queer Kansas Citians.
- Updated out-there.md to correct the link to Lea Hopkins' interview.
- Changed subjects.md permalink from "/subjects.html" to "/subjects/" for consistency.
- Updated timeline.md permalink from "/timeline.html" to "/timeline/" for uniformity.

pages/data.md

@@ -1,11 +1,12 @@
 ---
 title: Data
 layout: data
-permalink: /data.html
+permalink: /data/
 ---
 
-## Archival Metadata
+# What is decentralization?
 
+## Archival Metadata
 The table below provides sorting and basic search of the archive's contents. 
 Use the "CSV" button below to download the filtered metadata you see on the page. 
 Alternatively, click the "Download" button at the top right to view the full archive's metadata in various formats.