📝 Update git’s database internals

Author: veit

docs/productive/git/advanced/internals.rst

@@ -8,9 +8,15 @@ Git’s database internals
 .. seealso::
    * `Commits are snapshots, not diffs
      <https://github.blog/2020-12-17-commits-are-snapshots-not-diffs/>`_
-   * `Git’s database internals I: packed object store
-     <https://github.blog/2022-08-29-gits-database-internals-i-packed-object-store/>`_
-   * `Git’s database internals II: commit history queries
-     <https://github.blog/2022-08-30-gits-database-internals-ii-commit-history-queries/>`_
-   * `Git’s Database Internals III: File History Queries
-     <https://github.blog/2022-08-31-gits-database-internals-iii-file-history-queries/>`_
+   * Git’s database internals
+
+     * `Part I: packed object store
+       <https://github.blog/2022-08-29-gits-database-internals-i-packed-object-store/>`_
+     * `Part II: commit history queries
+       <https://github.blog/2022-08-30-gits-database-internals-ii-commit-history-queries/>`_
+     * `Part III: file history queries
+       <https://github.blog/2022-08-31-gits-database-internals-iii-file-history-queries/>`_
+     * `Part IV: distributed synchronization
+       <https://github.blog/2022-09-01-gits-database-internals-iv-distributed-synchronization/>`_
+     * `Part V: scalability
+       <https://github.blog/2022-09-02-gits-database-internals-v-scalability/>`_