Revise description of accepts_flags hint

RELEASE_NOTES.md

@@ -27,7 +27,7 @@ Version 4.0.0 makes some potentially-breaking changes to improve the flexibility
 
   These additions to the schema should help represent features gated to development versions, which were previously misrepresented with notes, `false` values, or inaccurate version numbers. ([#10334](https://github.com/mdn/browser-compat-data/pull/10334))
 
-- The schema for browser release data now supports the optional `accepts_flags` boolean hint, which indicates whether a browser (or individual release) permits user-configurable preferences. Presently, this is a hint for data contributors or tools. The value of `accepts_flags` doesn't make any guarantees about the contents of feature data. ([#11286](https://github.com/mdn/browser-compat-data/pull/11286))
+- The schema for browser release data now supports the optional `accepts_flags` boolean hint, which indicates whether a browser (or individual release) should contain `flags` data. Presently, this is a hint for data contributors or tools. The value of `accepts_flags` doesn't (yet) make any guarantees about the contents of feature data. ([#11286](https://github.com/mdn/browser-compat-data/pull/11286))
 
 - Descendant features of `api.HTMLCanvasElement.getContext` and `api.HTMLCanvasElement.toBlob` have been reorganized to follow [the guideline for parameter object features](https://github.com/mdn/browser-compat-data/blob/main/docs/data-guidelines.md#parameters-and-parameter-object-features). See [the PR for a detailed list of features affected](https://github.com/mdn/browser-compat-data/pull/11234#issuecomment-900265901). ([#11234](https://github.com/mdn/browser-compat-data/pull/11234))