update brand assets (#121)

### 📖 Summary

- update logo files in docs, readme...

### 📑 Test Plan

✅ CI pipeline tests (Default)

### 💬 Details

_No response_

### 📚 Additional Notes

_No response_

Reviewed-on: #121

docs/guide/components/arkanum-cli.md

@@ -14,7 +14,7 @@ significantly.
 To use the cli just open a terminal and call the `arkanum` command. We also added a bash-completion
 script for the cli.
 
-<<< @/../arkanum#usage{34-36 bash:line-numbers}
+<<< @/../arkanum#usage{35-37 bash:line-numbers}
 
 The first thing you normally after starting your Arkanum instance is setting the git user and email: