The "basic-features" matrix is too long and unreadable

[kennytm]

Change Request

Please answer the following questions before submitting your issue. Thanks!

1. Describe what you find is inappropriate or missing in the existing docs.

https://docs.pingcap.com/tidb/stable/basic-features/#management-observability-and-tools

For the features listed in the middle we cannot see which version those Y/N etc correspond to

2. Describe your suggestion or addition.

Use position: sticky on the <thead>.

I can't make it work without setting a max-height on the <table> though. With a max-height readers may not know that table is longer than visible.

Alternatively don't use a version matrix, but describe in words like:

Management, observability, and tools	Support
TiDB Dashboard UI	Supported ≥ v5.1
TiDB Dashboard Continuous Profiling	Supported ≥ v6.1 (Experimental ≥ v5.3)
TiKV-FastTune dashboard	Experimental ≥ v5.1
Statements summary tables - summary persistence	Experimental ≥ v7.1
...	...

3. Provide some reference materials (such as documents and websites) if you could.

Additionally, given that every version before v5.4 has reached EOL, perhaps remove columns for v5.3, v5.2, v5.1 to reduce clutter.