fix incorrect circup package name in README

DeadSix27 · web-flow · commit 993cc1cbd58e · 2022-10-02T17:24:30.000+02:00
diff --git a/README.rst b/README.rst
@@ -82,7 +82,7 @@ following command to install:
 
 .. code-block:: shell
 
-    circup install si1145
+    circup install adafruit_si1145
 
 Or the following command to update an existing version:
 
