Update hh logo (#379)

**Related Issue(s):**

- #

**Description:**


**PR Checklist:**

- [ ] Code is formatted and linted (run `pre-commit run --all-files`)
- [ ] Tests pass (run `make test`)
- [ ] Documentation has been updated to reflect changes, if applicable
- [ ] Changes are added to the changelog

Author: jonhealy1

README.md

@@ -17,7 +17,7 @@ The following organizations have contributed time and/or funding to support the
 
 <p align="left">
   <a href="https://healy-hyperspatial.github.io/">
-    <img src="assets/hh-github.png" alt="Healy Hyperspatial" height="100" style="border-radius: 10px;">
+    <img src="assets/hh-logo-blue.png" alt="Healy Hyperspatial" height="120">
   </a>
 
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