remove header, enlarge stac logo

Author: jonhealy1

README.md

@@ -3,9 +3,8 @@
 <!-- markdownlint-disable MD033 MD041 -->
 
 <p align="left">
-  <img src="assets/stac-030-long.png" width=650>
+  <img src="assets/stac-030-long.png" width=700>
   <p align="left"><b>Elasticsearch and Opensearch backends for the stac-fastapi project.</b></p>
-  <p align="left"><b>Featuring stac-fastapi-core for simplifying the creation and maintenance of custom STAC api backends.</b></p>
 </p>