[Hotfix][Docs] Fix broken link of flink-architecture.md

[wangxlong]

What is the purpose of the change

Fix broken link of flink-architecture.md

Brief change log

Fix broken link of flink-architecture.md

Verifying this change

This change is a trivial rework / code cleanup without any test coverage.

Does this pull request potentially affect one of the following parts:

• Dependencies (does it add or upgrade a dependency): (no)
• The public API, i.e., is any changed class annotated with @Public(Evolving): ( no)
• The serializers: (no / don't know)
• The runtime per-record code paths (performance sensitive): (no / don't know)
• Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Kubernetes/Yarn/Mesos, ZooKeeper: (no / don't know)
• The S3 file system connector: ( no / don't know)

Documentation

• Does this pull request introduce a new feature? ( no)
• If yes, how is the feature documented? (not applicable / docs / JavaDocs / not documented)

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[wangxlong]

cc @zentol @klion26 in your free time ~

[klion26]

Why do we need to change this?
Seems the link is correct and reachable. (test use documentation of 1.11)

[wangxlong]

It's kind of weird. I run build_docs.sh shell, and when I clicked this link in my local browser, it can not reachable. This is a javadocs url not other document, So I change this, and it is ok in my local. I checked the master and 1.11 just now, yes, it is reachable.
I run the check_links.sh just now, it also showed that ERROR /api/java/ not found.

BTW, there are other links broken by running check_links.sh shell.
1./api/java/org/apache/flink/types/RowKind.html' not found.
2./dev/python/table-api-users-guide/udfs.html
3. /dev/python/user-guide/table/dependency_management.html
For the first, I checked it, it is the same with this.
For the second, I did not found any documents use this url.
For the third, Maybe it is really broken. We should use dev/python/table-apis-users-guide/dependency_management.html not dev/python/user-guide/table/dependency_management.html.

[klion26]

@wangxlong I'm not very sure why the java doc links broken locally. maybe you need to generate the java doc locally before reaching to the doc.

Thanks for checking the broken links. Could you please file an issue to fix the other broken links you mentioned?

[wangxlong]

Yes, I close this pr, and open a issue to fix these.