host-toolchain plugin: improve README

plugins/examples/host-toolchain/README.md

@@ -25,6 +25,29 @@ Comparing files test-gcc-host.exe and TEST-PTHREADS-LIBGOMP.EXE
 FC: no differences encountered
 ```
 
+#### CMake
+
+```
+make cmake-host MXE_PLUGIN_DIRS=plugins/examples/host-toolchain/
+```
+
+CMake defaults to Visual Studio generators and additional configuration is
+required for [MinGW or MSYS Makefiles][cmake-generators]. MinGW uses `cmd.exe`
+and requires `mingw32-make`, MSYS uses `make` and requires `/bin/sh`. The
+latter is recommended for further investigation since it's closest to the
+normal environment MXE expects. See the following projects for shells and
+terminal emulators:
+
+  - [MSYS2][msys2]
+  - [Git for Windows][git-win] - uses MSYS2
+  - [ConEmu][conemu] - usable terminal
+  - [cmder][cmder] - bundles ConEmu and Git
+
+#### Make
+
+Make is difficult to cross-compile so it is downloaded from the [source
+recommended by the GNU Make team](http://git.savannah.gnu.org/cgit/make.git/tree/README.W32.template).
+
 #### Qt5 tools (`qmake.exe`, `rcc.exe`, etc.)
 
 ```
@@ -32,7 +55,7 @@ make qt5-host-tools MXE_PLUGIN_DIRS=plugins/examples/host-toolchain/
 ```
 
 This will build `qtbase`, cross-compile the toolchain and qt tools, and
-download `make` binaries from the source recommended by the GNU Make project.
+download `make` binaries.
 
 On a windows machine, execute
 `usr\{target}\qt5\test-qt5-host-tools\test-qt5-host-tools.bat` to build and
@@ -41,24 +64,6 @@ confirm the normal `qt` test with the cross-compiled `qtbase` libraries.
 **N.B.** shared `gcc` doesn't work with the test program. To build a shared
 test, use the additional option `gcc-host_CONFIGURE_OPTS=--disable-shared`.
 
-#### CMake
-
-```
-make cmake-host MXE_PLUGIN_DIRS=plugins/examples/host-toolchain/
-```
-
-CMake defaults to Visual Studio generators and additional configuration is
-required for [MinGW or MSYS Makefiles][cmake-generators]. MinGW uses `cmd.exe`
-and requires `mingw32-make`, MSYS uses `make` and requires `/bin/sh`. The
-latter is recommended for further investigation since it's closest to the
-normal environment MXE expects. See the following projects for shells and
-terminal emulators:
-
-  - [MSYS2](https://msys2.github.io/)
-  - [Git for Windows](https://git-for-windows.github.io/) - uses MSYS2
-  - [ConEmu](https://conemu.github.io/) - usable terminal
-  - [cmder](http://cmder.net/) - bundles ConEmu and Git
-
 Why?
 ----
 
@@ -70,3 +75,7 @@ running a Linux VM on Windows).
 
 
 [cmake-generators]:https://cmake.org/cmake/help/latest/manual/cmake-generators.7.html
+[cmder]:http://cmder.net/
+[conemu]:https://conemu.github.io/
+[git-win]:https://git-for-windows.github.io/
+[msys2]:https://msys2.github.io/