Apply suggestions from code review

Co-authored-by: Andrew Murray <3112309+radarhere@users.noreply.github.com>

README.rst

@@ -436,7 +436,7 @@ To use these scripts
   There are two ways to build ``universal2`` builds.
   1. Build with ``-arch x86_64 -arch arm64``.
      These flags instruct the C/C++ compiler to compile twice and create a
-     fat object/executable/library. This is the easiest, but have several
+     fat object/executable/library. This is the easiest, but has several
      drawbacks. If you are using C/C++ libraries that are built using
      library_builders, it's highly likely that they don't build correctly
      because most build systems and packages don't support building fat binaries.

osx_utils.sh

@@ -466,7 +466,7 @@ function fuse_macos_intel_arm64 {
            if [[ -f "${whl_base}macosx_11_0_arm64.whl" ]]; then
                delocate-fuse $whl "${whl_base}macosx_11_0_arm64.whl" -w tmp_fused_wheelhouse
                mv tmp_fused_wheelhouse/$(basename $whl) $wheelhouse/$(basename ${whl_base})macosx_${py_osx_ver}_universal2.whl
-               # Since we want one wheel thats installable for testing we are deleting the *_x86_64 wheel.
+               # Since we want one wheel that's installable for testing we are deleting the *_x86_64 wheel.
                # We are not deleting arm64 wheel because the size is lower and homebrew/conda-forge python
                # will use them by default
                rm $whl