Update README to remove installation details

Removed installation section and dependencies from README.

Author: hschryver

README.md

@@ -2,12 +2,6 @@
 
 A Python library for processing and analyzing Xenium sections, utilizing SpatialData formatting.
 
-## Installation
-
-Important dependencies:
-* spatialdata[extra]==0.6.1
-* pyarrow==21.0.0
-
 ### In Code Ocean Package Manager:
 pip: git+[https://github.com/AllenInstitute/xenium_analysis_tools#egg=xenium-analysis-tools]
 * To get updated version of package, need to 'refresh' package image - usually removing and adding again works.