More updates to build instructions.

README.md

@@ -3,15 +3,46 @@
 
 CTEM uses CMake to automate the build process. You will need at least version 3.6.0.
 
-To build the executable and all artifacts in a directory called `build/`, simply run the following commands from the CTEM root directory:
+Navigate to the topmost directory in your CTEM repository. It is best practice to create a ```build``` directory in your topmost directory from which you will compile CTEM. This way, temporary CMake files will not clutter up the project sub-directories. The commands to build the source code into a ```build``` directory and compile CTEM are:
 
 ```
 $ cmake -B build -S .
 $ cmake --build build
 ```
 
-To clean all build artifacts, you can execute the included `distclean.cmake` script with the following command:
+The [CMake Fortran template](https://github.com/SethMMorton/cmake_fortran_template) comes with a script that can be used to clean out any build artifacts and start from scratch:
 
 ```
 $ cmake -P distclean.cmake
-```
+```
+
+The CTEM CMake configuration comes with several customization options:
+
+| Option                          | CMake command                                              |
+| --------------------------------|------------------------------------------------------------|
+| Build type                      | \-DCMAKE_BUILD_TYPE=[**RELEASE**\|DEBUG\|TESTING\|PROFILE] |
+| Enable/Disable OpenMP support   | \-DUSE_OPENMP=[**ON**\|OFF]                                |
+| Enable/Disable SIMD directives  | \-DUSE_SIMD=[**ON**\|OFF]                                  |
+| Set Fortran compiler path       | \-DCMAKE_Fortran_COMPILER=/path/to/fortran/compiler        |
+| Set path to make program        | \-DCMAKE_MAKE_PROGRAM=/path/to/make                        |
+| Enable/Disable shared libraries (Intel only) | \-DBUILD_SHARED_LIBS=[**ON\|OFF]              |
+| Add additional include path     | \-DCMAKE_Fortran_FLAGS="-I/path/to/libraries                 |
+| Install prefix                  | \-DCMAKE_INSTALL_PREFIX=["/path/to/install"\|**"/usr/local"**] |
+
+
+
+To see a list of all possible options available to CMake:
+```
+$ cmake -B build -S . -LA
+```
+
+The CTEM executable, called `CTEM`, should now be created in the ```bin/``` directory.
+
+If you wish to install CTEM into the system, execute the following command:
+
+```
+$ cmake --install build
+```
+
+This will install the project into the directory specified by `CMAKE_INSTALL_PREFIX` (the default is `/usr/local`), provided you have
+sufficient permissions.