put --no-binary pyzmq on the end

so we don't have the confusing double `pyzmq pyzmq` argument,
which looks like a typo

docs/source/howto/build.md

@@ -26,7 +26,7 @@ brew install zeromq
 You can install pyzmq from source with `pip` by telling it `--no-binary pyzmq`:
 
 ```
-python3 -m pip install --no-binary pyzmq pyzmq
+python3 -m pip install pyzmq --no-binary pyzmq
 ```
 
 or an editable install from a local checkout:
@@ -47,15 +47,15 @@ Build a wheel against already-installed libzmq:
 
 ```bash
 export ZMQ_PREFIX=/usr/local
-python3 -m pip install --no-binary pyzmq pyzmq
+python3 -m pip install pyzmq --no-binary pyzmq
 ```
 
 Force building bundled libzmq with the draft API:
 
 ```bash
 export ZMQ_PREFIX=bundled
 export ZMQ_BUILD_DRAFT=1
-python3 -m pip install --no-binary pyzmq pyzmq
+python3 -m pip install pyzmq --no-binary pyzmq
 ```
 
 ## Finding libzmq

docs/source/howto/draft.md

@@ -31,10 +31,10 @@ And then build pyzmq with draft support:
 ```bash
 export ZMQ_PREFIX=${PREFIX}
 export ZMQ_DRAFT_API=1
-pip install -v --no-binary pyzmq pyzmq
+pip install -v pyzmq --no-binary pyzmq
 ```
 
-By specifying `--no-binary pyzmq`, pip knows to not install wheels, and will compile pyzmq from source.
+By specifying `--no-binary pyzmq`, pip knows to not install the pre-built wheels, and will compile pyzmq from source.
 
 The `ZMQ_PREFIX=$PREFIX` part is only necessary if libzmq is installed somewhere not on the default search path.
 If libzmq is installed in {file}`/usr/local` or similar,