fix relative paths

Author: cmpadden

docs/docs/about/changelog.md

@@ -4,7 +4,7 @@ hide_title: true
 toc_max_heading_level: 2
 ---
 
-import Changes, {toc as ChangesTOC} from "@site/../../CHANGES.md"
+import Changes, {toc as ChangesTOC} from "@site/../CHANGES.md"
 
 <Changes />
 

docs/docs/guides/migrate/version-migration.md

@@ -3,7 +3,7 @@ title: 'Version migration'
 hide_title: true
 ---
 
-import VersionMigration, {toc as VersionMigrationTOC} from "@site/../../MIGRATION.md"
+import VersionMigration, {toc as VersionMigrationTOC} from "@site/../MIGRATION.md"
 
 <VersionMigration />