Updated the logo in README.md (#724)

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## What type of PR is this? (check all applicable)

- [ ] Refactor
- [ ] Feature
- [ ] Bug Fix
- [ ] Optimization
- [x] Documentation Update

## Description

## Related Tickets & Documents

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- Related Issue #710
- Closes #710

## Added/updated tests?

- [ ] Yes
- [ ] No, and this is why: _please replace this line with details on why
tests
      have not been included_
- [ ] I need help with writing tests

## Run verifications and test

- [ ] `make verify` is passing
- [ ] `make test` is passing

Signed-off-by: Sham Karthik S <53367916+shamkarthik@users.noreply.github.com>

README.md

@@ -6,7 +6,7 @@
 [![sourcegraph](https://sourcegraph.com/github.com/gorilla/mux/-/badge.svg)](https://sourcegraph.com/github.com/gorilla/mux?badge)
 
 
-![Gorilla Logo](https://cloud-cdn.questionable.services/gorilla-icon-64.png)
+![Gorilla Logo](https://github.com/gorilla/.github/assets/53367916/d92caabf-98e0-473e-bfbf-ab554ba435e5)
 
 Package `gorilla/mux` implements a request router and dispatcher for matching incoming requests to
 their respective handler.