doc: add some missing technical documents

Commit bcf7ede ("meson: generate articles", 2024-12-27) added the
generation of the 'howto' and 'technical' documents to the meson build.
At this time those documents had a '*.txt' file extension, but they were
renamed with an '*.adoc' extension by commit 1f010d6 ("doc: use .adoc
extension for AsciiDoc files", 2025-01-20), for the most part. For the
meson build, commit 87eccc3 ("meson: fix building technical and howto
docs", 2025-03-02) fixed the meson.build files, which had not been
updated when the files were renamed.

However, the 'Documentation/Makefile' has not been updated to include
all of the recently added technical documents. In particular, the
following are built by meson, but not by the Makefile:

    commit-graph.adoc
    directory-rename-detection.adoc
    packfile-uri.adoc
    remembering-renames.adoc
    repository-version.adoc
    rerere.adoc
    sparse-checkout.adoc
    sparse-index.adoc

In order to ensure that both build systems format the same technical
documents, add the above documents to the TECH_DOCS variable in the
Documentation/Makefile.

Signed-off-by: Ramsay Jones <ramsay@ramsayjones.plus.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Author: ramsay-jones

Documentation/Makefile

@@ -119,18 +119,26 @@ TECH_DOCS += ToolsForGit
 TECH_DOCS += technical/bitmap-format
 TECH_DOCS += technical/build-systems
 TECH_DOCS += technical/bundle-uri
+TECH_DOCS += technical/commit-graph
+TECH_DOCS += technical/directory-rename-detection
 TECH_DOCS += technical/hash-function-transition
 TECH_DOCS += technical/long-running-process-protocol
 TECH_DOCS += technical/multi-pack-index
+TECH_DOCS += technical/packfile-uri
 TECH_DOCS += technical/pack-heuristics
 TECH_DOCS += technical/parallel-checkout
 TECH_DOCS += technical/partial-clone
 TECH_DOCS += technical/platform-support
 TECH_DOCS += technical/racy-git
 TECH_DOCS += technical/reftable
+TECH_DOCS += technical/remembering-renames
+TECH_DOCS += technical/repository-version
+TECH_DOCS += technical/rerere
 TECH_DOCS += technical/scalar
 TECH_DOCS += technical/send-pack-pipeline
 TECH_DOCS += technical/shallow
+TECH_DOCS += technical/sparse-checkout
+TECH_DOCS += technical/sparse-index
 TECH_DOCS += technical/trivial-merge
 TECH_DOCS += technical/unit-tests
 SP_ARTICLES += $(TECH_DOCS)