Fix MDX build error in live-streaming-tuning.md caused by bare < in table cells

[Copilot]

Docusaurus MDX compiler treats <0 as the start of a JSX tag; since tag names can't begin with a digit, the build fails with Unexpected character '0' before name at line 70 of live-streaming-tuning.md.

Change

Escaped the two offending less-than signs in the latency breakdown table with <:

-| Disk I/O              | <0.1s (SSD) | ⚠️ Storage type |
-| HLS server processing | <0.01s      | ❌ Negligible   |
+| Disk I/O              | &lt;0.1s (SSD) | ⚠️ Storage type |
+| HLS server processing | &lt;0.01s      | ❌ Negligible   |

Original prompt

Fix the failing GitHub Actions workflow build
Analyze the workflow logs, identify the root cause of the failure, and implement a fix.
Check run ID: 70953755246
Job URL: https://github.com/alxayo/streamgate/actions/runs/24300811269/job/70953755246