HBASE-25563 Add "2.4 Documentation" to the website

[ndimiduk]

The content is in the website git repo but there's no menu on our homepage.

[Apache9]

I think we should also remove the 2.3 content since it is EOL?

[Apache-HBase]

🎊 +1 overall

Vote	Subsystem	Runtime	Comment
+0 🆗	reexec	0m 40s	Docker mode activated.
-0 ⚠️	yetus	0m 3s	Unprocessed flag(s): --brief-report-file --spotbugs-strict-precheck --whitespace-eol-ignore-list --whitespace-tabs-ignore-list --quick-hadoopcheck
		_ Prechecks _
		_ master Compile Tests _
		_ Patch Compile Tests _
		_ Other Tests _
		1m 46s

Subsystem	Report/Notes
Docker	ClientAPI=1.41 ServerAPI=1.41 base: https://ci-hbase.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-4758/1/artifact/yetus-jdk8-hadoop3-check/output/Dockerfile
GITHUB PR	#4758
Optional Tests
uname	Linux 6d4f630c507a 5.4.0-1071-aws #76~18.04.1-Ubuntu SMP Mon Mar 28 17:49:57 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	dev-support/hbase-personality.sh
git revision	master / 9d1af59
Max. process+thread count	28 (vs. ulimit of 30000)
modules	C: . U: .
Console output	https://ci-hbase.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-4758/1/console
versions	git=2.17.1 maven=3.6.3
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[Apache-HBase]

🎊 +1 overall

Vote	Subsystem	Runtime	Comment
+0 🆗	reexec	0m 59s	Docker mode activated.
-0 ⚠️	yetus	0m 2s	Unprocessed flag(s): --brief-report-file --spotbugs-strict-precheck --whitespace-eol-ignore-list --whitespace-tabs-ignore-list --quick-hadoopcheck
		_ Prechecks _
		_ master Compile Tests _
		_ Patch Compile Tests _
		_ Other Tests _
		2m 5s

Subsystem	Report/Notes
Docker	ClientAPI=1.41 ServerAPI=1.41 base: https://ci-hbase.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-4758/1/artifact/yetus-jdk11-hadoop3-check/output/Dockerfile
GITHUB PR	#4758
Optional Tests
uname	Linux 723bb5cdd950 5.4.0-124-generic #140-Ubuntu SMP Thu Aug 4 02:23:37 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	dev-support/hbase-personality.sh
git revision	master / 9d1af59
Max. process+thread count	38 (vs. ulimit of 30000)
modules	C: . U: .
Console output	https://ci-hbase.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-4758/1/console
versions	git=2.17.1 maven=3.6.3
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[ndimiduk]

I think we should also remove the 2.3 content since it is EOL?

We can, yes. In the past, we maintained the old release documentation on the web for quite a while after EOL because users still have old deployments. In that sense, we don't have a good means to know when to retire old content.

It looks like we never delete the old content, only remove the links from the main site. When I list the website repo, I see folders for,

drwxr-xr-x 50 ndimiduk staff 1600 Aug 15 2019 1.1 drwxr-xr-x 51 ndimiduk staff 1632 Aug 15 2019 1.2 drwxr-xr-x 39 ndimiduk staff 1248 Jul 13 2020 1.4 drwxr-xr-x 48 ndimiduk staff 1536 Jul 13 2020 2.0 drwxr-xr-x 49 ndimiduk staff 1568 Aug 19 2020 2.1 drwxr-xr-x 48 ndimiduk staff 1536 Jul 13 2020 2.2 drwxr-xr-x 49 ndimiduk staff 1568 Aug 19 2020 2.3 drwxr-xr-x 49 ndimiduk staff 1568 Apr 2 2021 2.4 drwxr-xr-x 44 ndimiduk staff 1408 Aug 31 16:08 2.5 

[Apache-HBase]

🎊 +1 overall

Vote	Subsystem	Runtime	Comment
+0 🆗	reexec	0m 39s	Docker mode activated.
		_ Prechecks _
+1 💚	dupname	0m 0s	No case conflicting files found.
+1 💚	@author	0m 0s	The patch does not contain any @author tags.
		_ master Compile Tests _
+1 💚	mvninstall	2m 24s	master passed
+1 💚	mvnsite	5m 35s	master passed
+1 💚	spotless	0m 42s	branch has no errors when running spotless:check.
		_ Patch Compile Tests _
+1 💚	mvninstall	2m 11s	the patch passed
+1 💚	mvnsite	5m 6s	the patch passed
+1 💚	whitespace	0m 0s	The patch has no whitespace issues.
+1 💚	xml	0m 2s	The patch has no ill-formed XML file.
+1 💚	spotless	0m 37s	patch has no errors when running spotless:check.
		_ Other Tests _
+1 💚	asflicense	0m 11s	The patch does not generate ASF License warnings.
		18m 51s

Subsystem	Report/Notes
Docker	ClientAPI=1.41 ServerAPI=1.41 base: https://ci-hbase.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-4758/1/artifact/yetus-general-check/output/Dockerfile
GITHUB PR	#4758
Optional Tests	dupname asflicense mvnsite spotless xml
uname	Linux 6d7f56bea1bd 5.4.0-1071-aws #76~18.04.1-Ubuntu SMP Mon Mar 28 17:49:57 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	dev-support/hbase-personality.sh
git revision	master / 9d1af59
Max. process+thread count	52 (vs. ulimit of 30000)
modules	C: . U: .
Console output	https://ci-hbase.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-4758/1/console
versions	git=2.17.1 maven=3.6.3
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