[flang] Copyediting of README.md.

Original-commit: flang-compiler/f18@32ffc711b61fbfdefee2881cf051e207f6fc9a96
Reviewed-on: https://github.com/flang-compiler/f18/pull/84
Tree-same-pre-rewrite: false

diff --git a/flang/README.md b/flang/README.md
index 10b4dc2b066e5b52773a017818335cc1be3ebf6f..a84511155cf2c611217b879e682d0295d0cd46e8 100644 (file)
--- a/flang/README.md
+++ b/flang/README.md
@@ -6,42 +6,42 @@ Copyright (c) 2018, NVIDIA CORPORATION.  All rights reserved.
 
 ## Selection of the C/C++ compiler
 
-F18 requires a C++17 compiler. As of today, the code was only tested with g++
-7.2.0, g++ 7.3.0 and clang 6.0.
+F18 requires a C++17 compiler.  The code has been tested with g++
+7.2.0, g++ 7.3.0, and clang 6.0.
 
-For a proper installation, we assume that the PATH and LD_LIBRARY_PATH environment variables 
-are properly set to use gcc, g++ and the associated libraries.   
+For a proper installation, we assume that the PATH and LD_LIBRARY_PATH environment variables
+are properly set to use gcc, g++ and the associated libraries.
 
-cmake will require that the environement variables CC and CXX are properly set (else it will 
-search for use the 'cc' and 'c++' program which are likely /usr/bin/cc and /usr/bin/c++) that 
-can be done now or while calling cmake 
+cmake will require that the environment variables CC and CXX are properly set (else it would
+search for the 'cc' and 'c++' commands which are likely /usr/bin/cc and /usr/bin/c++).
+That can be done now or while calling cmake.
 
     export CC=gcc
     export CXX=g++
 
 ## Installation of LLVM & CLANG 6.0
 
-F18 depends of the LLVM & CLANG libraries even when clang is not used as C++ compiler.  
+F18 depends on the LLVM & CLANG libraries even when clang is not used as C++ compiler.
 
-If those libraries are not provided by your system then you may want to follow the 
-build instructions at https://clang.llvm.org/get_started.html 
+If those libraries are not provided by your system, then you may want to follow the
+build instructions at https://clang.llvm.org/get_started.html .
 
 ## Installation of F18
 
     ######## Choose the installation directory
-   
-    F18_PREFIX=...   
+
+    F18_PREFIX=...
 
     ######## Get Flang sources in $ROOT/f18
     cd $ROOT
     git clone https://github.com/ThePortlandGroup/f18.git
 
-    ######## And build it in a dedicated directory
-    ######## Reminder: If LLVM & Clang where not installed in a standard 
-    ########           location then you may also have to specify it via the
-    ########           CMAKE_MODULE_PATH or CMAKE_PREFIX_PATH variables. 
+    ######## And build f18 in a dedicated directory
+    ######## Reminder: If LLVM & Clang were not installed in a standard
+    ########           location, then you may also have to specify it via the
+    ########           CMAKE_MODULE_PATH or CMAKE_PREFIX_PATH variables.
     mkdir $ROOT/f18-build
-    cd $ROOT/f18-build   
+    cd $ROOT/f18-build
     CC=gcc CXX=g++ cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=$F18_PREFIX $ROOT/f18
-    make -j 4
+    make -j 8
     make install