Broken references in WebXR Lighting Estimation API Level 1

[dontcallmedom-bot]

While crawling WebXR Lighting Estimation API Level 1, the following links to other specifications were detected as pointing to non-existing anchors, which should be fixed:

• https://www.w3.org/TR/webxr/#xrsession-list-of-enabled-features
• https://www.w3.org/TR/webxrlayers-1/#session

_{This issue was detected and reported semi-automatically by Strudy based on data collected in webref.}