Update copy.

src/Engines/TemplateEngineManager.js

@@ -104,10 +104,10 @@ class TemplateEngineManager {
 
  async getEngine(name, extensionMap) {
  // Warning about engine deprecation
- // TODO: error message needs updating once issue is closed
+ // TODO v3.0 error message needs updating before stable release
  if (this.isEngineDeprecated(name)) {
  throw new Error(
- `Per our community survey, the "${name}" template syntax was removed from core in 11ty v3.0. Read more https://github.com/11ty/eleventy/issues/3124 including our plans to expose these as official plugins (outside of core). You can implement these yourself using https://www.11ty.dev/docs/languages/custom/`,
+ `Per the 11ty community survey, the "${name}" template syntax was removed from core in v3.0. You can read more https://github.com/11ty/eleventy/issues/3124 including plans to offer some of these as official plugins (outside of core). You can implement these yourself using https://www.11ty.dev/docs/languages/custom/`,
  );
  }