Update README.md

Omit extraneous info about forcing CPU-only installs from the README

README.md

@@ -64,17 +64,11 @@ Elapsed Time: 129.017 ms
 Only linux-64 packages are available at the moment.
 
 The default package contains GPU support, and is compatible with CUDA >= 11.8
-(CUDA driver version >= r520), and Volta or later GPU architectures. There are
-also CPU-only packages available, and will be automatically selected when
-installing on a machine without GPUs. You can force installation of a CPU-only
-package by requesting it as follows:
-
-```
-conda ... cunumeric=*=*_cpu
-```
-
-See the build instructions at https://nv-legate.github.io/cunumeric for details
-about building cuNumeric from source.
+(driver  >= 520), and Volta or later GPU architectures. There are also CPU-only
+packages available, which will be automatically selected when installing on a
+machine without GPUs available. See the build instructions at 
+https://nv-legate.github.io/cunumeric for details about manually forcing 
+different install configurations, or building cuNumeric from source.
 
 ## Usage and Execution