Update README.md

Author: sbryngelson

README.md

@@ -85,10 +85,6 @@ then you can build MFC and run the test suite!
 ```
 And... you're done!
 
-If you want to build MFC in single precision to ensure calculations are done in fp32 instead of fp64
-then build with the --single flag
-./mfc.sh build -j $(nproc) --single
-
 You can learn more about MFC's capabilities [via its documentation](https://mflowcode.github.io/documentation/index.html) or play with the examples located in the `examples/` directory (some are [shown here](https://mflowcode.github.io/documentation/md_examples.html))!
 
 The shock-droplet interaction case above was run via
@@ -165,6 +161,7 @@ They are organized below. Just click the drop-downs!
 	* \>66K AMD GPUs on the first exascale computer, [OLCF Frontier](https://www.olcf.ornl.gov/frontier/) (AMD MI250X-based)
 * Near compute roofline behavior
 * RDMA (remote data memory access; GPU-GPU direct communication) via GPU-aware MPI on NVIDIA (CUDA-aware MPI) and AMD GPU systems
+* Optional single-precision computation and storage
 </details>
 
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