Remove alternative Markdown renderer build options (Glamour performance issues addressed in custom fork; other options need more work)

README.md

@@ -31,8 +31,7 @@ After installing, please review the [usage guide](https://github.com/rwinkhart/M
 - [x] Implement tweak menu
 ### Release v0.4.0
 - [ ] Switch to fully compliant Markdown (do not preserve new lines)
-- [ ] Evaluate defaulting to building w/Bean over Glamour
-    - [ ] Verify having Glamour in go.mod does not impact binary size/speed (drop it if it does)
+- [ ] Switch to alternative Markdown renderer (minimark or BEAN)
 ### Release v0.5.0
 - [ ] libmutton v0.5.0
     - [ ] Password aging support