Update HOWTO.md to reflect reality
The "any" build was updated so that it disables support for the `sbp.jit` package for platforms that do not have Numba support.
@@ -178,7 +178,7 @@ make dist-python PYPI_USERNAME=swiftnav PYPI_PASSWORD=...
```
...will produce and upload a `.whl` appropriate for that platform. A
-wheel that targets any platform (but requires that `numba` be installed)
+wheel that targets any platform (this build disables Numba/Numpy support)
can be produced and uploaded by running the following command:
```
make dist-python PYPI_USERNAME=swiftnav PYPI_PASSWORD=... LIBSBP_BUILD_ANY=y
