.nav in vim-flavor-2.1.0

- old
+ new

@@ -2,11 +2,11 @@
 - philosophy.md
 - install_vim_flavor.md (Install vim-flavor)
 - uninstall_vim_flavor.md (Uninstall vim-flavor)
 - typical_usage:
   - install_vim_plugins.feature
-  - upgrade_vim_plugins.feature
+  - update_vim_plugins.feature
   - uninstall_vim_plugins.feature
   - deploy_to_arbitrary_place.feature
 - command_line:
 - flavorfile:
 - version_lock.feature
@@ -18,8 +18,8 @@
   - failures.feature
   - specifying_test_scripts.feature
 - version_tag_format.feature
 - branches:
   - install.feature
-  - upgrade.feature
+  - update.feature
   - changing_tracking_branches.feature
   - detect_incompatible_declarations.feature