chore(readme): update orap & reku readme for desc & logo

Author: nom4dv3

assets/rek.logo.png renamed to assets/reku.logo.png

@@ -2,7 +2,7 @@
 
 # ORAP: Oracle Application Framework
 
-ORAP is an out of box, express style framework.
+ORAP is a declarative framework for building oracle services, handy to use out of the box.
 
 ## Usage
 ```ts

packages/orap/README.md

@@ -1,14 +1,14 @@
-<div align="center"><img src="https://github.com/ora-io/ora-stack/blob/dev/assets/rek.logo.png?raw=true" alt="Rek Icon" width="200"  /></div>
+<div align="center"><img src="https://github.com/ora-io/ora-stack/blob/dev/assets/reku.logo.png?raw=true" alt="Reku Icon" width="200"  /></div>
 
-# Reku: Reliable ETH Kit & Utils
+# [WIP] Reku: Reliable ETH Kit & Utils
 
 ## Event Cross-Check
 - used for cross-checking missing events using eth getLogs
 - note: cross-check interval shouldn't < 5min, otherwise rpc call would be expensive. Recommend set to 1 hour + 50 blocks (for redundancy check).
 
 ### BaseCrossChecker
 - `onMissingLog: FnOnMissingLog`: the callback function that will be called when there's a missing log found;
-- `ignoreLogs?: SimpleLog[]` : it allows users to pass in the txhash list (,log index list) that already processed, let the crosschecker to ignore then.
+- `ignoreLogs?: SimpleLog[]` : it allows users to pass in the txhash list (,log index list) that already processed, let the crosschecker to ignore them.
 
 **crossCheckRange**