update README

README.md

@@ -25,7 +25,7 @@ interface definitions. This includes:
 - Optionally generates a makefile to build the model for VeriStand
   - Optionally generates a batch file to use NI's toolchain to build with the
     generated makefile
-  - Supported architectures: Linux x86_64, Windows x86 and x64<sup>\*</sup>
+  - Supported architectures: Linux x86_64, Windows x86 and x64\*
 - The generated code stands alone and does not need to be edited, making it safe
   to regenerate without erasing user code
 - Generates function prototypes to be defined elsewhere which implement the
@@ -43,7 +43,7 @@ don't need to change unless you change specific things. This way you can safely
 regenerate the VeriStand model source without accidentally overwriting your
 model's code!
 
-<sup>\*</sup> *Building for Windows requires Visual Studio 2017 or newer
+\**Building for Windows requires Visual Studio 2017 or newer
 installed with the C/C++ build tools included.*
 
 ## Usage Example