docs(autoware_geography_utils): update README.md (autowarefoundatio…

…n#111)

update readme

Signed-off-by: Yutaka Kondo <yutaka.kondo@youtalk.jp>

common/autoware_geography_utils/README.md

@@ -1,5 +1,5 @@
-# geography_utils
+# autoware_geography_utils
 
 ## Purpose
 
-This package contains geography-related functions used by other packages, so please refer to them as needed.
+This package contains geography-related utility functions used by other Autoware packages. It provides functionality for geographic coordinate transformations, height calculations, and Lanelet2 map projections.