chore: smaller image

Author: frectonz

README.md

@@ -1,5 +1,5 @@
 # pg-when
 
-<img src="./logo.jpeg" alt="pg-when-logo" width="512" align="right" style="margin: 0 0 1em 1em;"/>
+<img src="./logo.jpeg" alt="pg-when-logo" width="256" align="right" style="margin: 0 0 1em 1em;"/>
 
 A PostgreSQL extension for creating time values with natural language.