Fix typos, add newlines for readability

scripts/build-manylinux-wheels.sh

@@ -2,13 +2,20 @@
 set -e -x
 
 # This is to be run by Docker inside a Docker image.
-# You can test it locally on a Linux machine by installing docker and running from this repo's root:
+# You can test it locally on a Linux machine by installing Docker and running from this
+# repo's root:
 # $ docker run -e PLAT=manylinux1_x86_64 -v `pwd`:/io quay.io/pypa/manylinux1_x86_64 /io/scripts/build-manylinux-wheels.sh
 
-# The -e just defines an evironment variable PLAT=[docker name] inside the docker - auditwheel can't detect the docker name automatically.
-# The -v gives a directory alias for passing files in and out of the docker. (/io is arbitrary). E.g the setup.py script can be accessed in the docker via /io/setup.py
-# quay.io/pypa/manylinux1_x86_64 is the full docker image name. Docker downloads it automatically.
-# The last argument is a shell command that the Docker will execute. Filenames must be from the Docker's perspective.
+# The -e just defines an environment variable PLAT=[docker name] inside the Docker:
+# auditwheel can't detect the Docker name automatically.
+
+# The -v gives a directory alias for passing files in and out of the Docker.
+# (/io is arbitrary). E.g the setup.py script can be accessed in the Docker via
+# /io/setup.py quay.io/pypa/manylinux1_x86_64 is the full Docker image name. Docker
+# downloads it automatically.
+
+# The last argument is a shell command that the Docker will execute. Filenames must be
+# from the Docker's perspective.
 
 # Wheels are initially generated as you would usually, but put in a temp directory temp-wheels.
 # The pip-cache is optional but can speed up local builds having a real permanent pip-cache dir.