Merge pull request #1178 from deepmodeling/caic99-patch-2

docs: update ambiguous phrases

Author: dyzheng

docs/install.md

@@ -34,7 +34,7 @@ To compile ABACUS, please make sure that the following prerequisites are present
 
 - C++ compiler, supporting C++11. You can use [Intel® C++ compiler](https://software.intel.com/enus/c-compilers) or [GCC](https://gcc.gnu.org/).
 - MPI compiler. The recommended version are [Intel MPI](https://software.intel.com/enus/mpi-library) or [MPICH](https://www.mpich.org/).
-- Fortran compiler for building `BLAS`, `LAPACK`, `ScaLAPACK` or `ELPA`. You can use[Intel® Fortran Compiler](https://www.intel.com/content/www/us/en/developer/tools/oneapi/fortran-compiler.html) [GFortran](https://gcc.gnu.org/fortran/).
+- Fortran compiler if you are building `BLAS`, `LAPACK`, `ScaLAPACK`, and `ELPA` from source file. You can use[Intel® Fortran Compiler](https://www.intel.com/content/www/us/en/developer/tools/oneapi/fortran-compiler.html) [GFortran](https://gcc.gnu.org/fortran/).
 - [BLAS](http://www.netlib.org/blas/). You can use [OpenBLAS](https://www.openblas.net/).
 - [LAPACK](http://www.netlib.org/lapack/).
 - [ScaLAPACK](http://www.netlib.org/scalapack/).
@@ -50,7 +50,7 @@ sudo apt update && sudo apt install -y libopenblas-dev liblapack-dev libscalapac
 
 > Installing ELPA by apt only matches requirements on Ubuntu 22.04. For earlier linux distributions, you may install elpa from source.
 
-Alternatively, you can choose [Intel® oneAPI toolkit](https://software.intel.com/content/www/us/en/develop/tools/oneapi/commercial-base-hpc.html) (former Parallel Studio) as toolchain. The [Intel® oneAPI Base Toolkit](https://software.intel.com/content/www/us/en/develop/tools/oneapi/all-toolkits.html#base-kit) contains Intel® oneAPI Math Kernel Library (aka `MKL`), including `BLAS`, `LAPACK`, `ScaLAPACK` and `FFTW3`,  - this means that no Fortran compiler required anymore. The [Intel® oneAPI HPC Toolkit](https://software.intel.com/content/www/us/en/develop/tools/oneapi/all-toolkits.html#hpc-kit) contains Intel® MPI Library, and C++ compiler(including MPI compiler). Please noted that building `elpa` with a different MPI library may cause conflict between MPI libraries. Don't forget to [set environment variables](https://software.intel.com/content/www/us/en/develop/documentation/get-started-with-intel-oneapi-render-linux/top/configure-your-system.html) before you start! `cmake` will use Intel MKL if the environment variable `MKLROOT` is set.
+Alternatively, you can choose [Intel® oneAPI toolkit](https://software.intel.com/content/www/us/en/develop/tools/oneapi/commercial-base-hpc.html) (former Parallel Studio) as toolchain. The [Intel® oneAPI Base Toolkit](https://software.intel.com/content/www/us/en/develop/tools/oneapi/all-toolkits.html#base-kit) contains Intel® oneAPI Math Kernel Library (aka `MKL`), including `BLAS`, `LAPACK`, `ScaLAPACK` and `FFTW3`. The [Intel® oneAPI HPC Toolkit](https://software.intel.com/content/www/us/en/develop/tools/oneapi/all-toolkits.html#hpc-kit) contains Intel® MPI Library, and C++ compiler(including MPI compiler). Please noted that building `elpa` with a different MPI library may cause conflict between MPI libraries. Don't forget to [set environment variables](https://software.intel.com/content/www/us/en/develop/documentation/get-started-with-intel-oneapi-render-linux/top/configure-your-system.html) before you start! `cmake` will use Intel MKL if the environment variable `MKLROOT` is set.
 
 > Please refer to our [guide](https://github.com/deepmodeling/abacus-develop/wiki/Building-and-Running-ABACUS) on requirements.