fix(docs): feedback changes

Author: uniyalabhishek

README.md

@@ -29,10 +29,9 @@ The oracle supports four operating modes, configured via `ORACLE_MODE`:
 | `watcher` | You want headers only for blocks where specific addresses have on-chain activity (transactions to/from) | Scans blocks for interactions with watched addresses and submits only those block headers. Supports optional internal transaction detection via `debug_traceTransaction` |
 | `token_watcher` | You want headers only for blocks containing ERC-20 transfers to specific recipients (e.g., bridge deposit addresses) | Monitors `Transfer` events on configured token contracts filtered by recipient addresses, and submits headers for blocks with matching transfers |
 
-All modes include a **heartbeat mechanism** (except `push`, which
-inherently submits regularly) that periodically stores a checkpoint
-block header even when no activity is detected, bounding sync time
-on oracle restart.
+The `watcher` and `token_watcher` modes include a **heartbeat
+mechanism** that periodically stores a checkpoint block header even
+when no activity is detected, bounding sync time on oracle restart.
 
 ## Requirements