Update README.md

- Fix mispellings

tests/README.md

@@ -3,13 +3,23 @@ The tests in this directory are for the CMake Modules for the IAR Toolchains (e.
 
 The `run-tests.sh` script will...
 - build one executable for each supported language (`C`, `CXX` and `ASM`) using...
-- the the default CMake build configurations (`Debug`, `Release`, `DebWithRelInfo` and `MinSizeRel`).
+- the default CMake build configurations (`Debug`, `Release`, `DebWithRelInfo` and `MinSizeRel`).
 
 ## Environment
-The following GNU Bash environments were used:
+The script was used with the following environments providing GNU Bash:
+
+- Cygwin (https://cygwin.com)
+  - IAR Embedded Workbench
+  - CMake for Windows
+  - Ninja for Windows
 - MINGW64 (https://msys2.org)
-- WSL2/Ubuntu 20.04 (IAR Build Tools for Linux)
-- CYGWIN64 (https://cygwin.com)
+  - IAR Embedded Workbench
+  - CMake for Windows
+  - Ninja for Windows
+- Ubuntu 20.04 (/WSL2)
+  - IAR Build Tools for Linux
+  - Cmake for Linux
+  - Ninja for Linux
 
 ## Environment variables
 ### IAR_TOOL_ROOT
@@ -23,17 +33,19 @@ Export the `$IAR_TOOL_ROOT` environment variable, pointing to the top-level loca
 | `/c/IAR_Systems/EW/ARM/9.30.1` | Perform tests only using "Embedded Workbench 9.30.1".                 |
 
 ### IAR_LMS2_SERVER_IP (optional)
-Export the `IAR_LMS2_SERVER_IP` environment pointing to the license server, if the client's 1st-time license setup is required. Applies to the `-GL` and `-NW` products. (Default: not set)
+Export the `IAR_LMS2_SERVER_IP` environment variable pointing to the license server, if the client's 1st-time license setup is required. Applies to the `-GL` and `-NW` products. (Default: not set)
 
 ### CMAKE_MAKE_PROGRAM (optional)
-Export the `CMAKE_MAKE_PROGRAM` to specify which generator to use. (Default: `Ninja`)
+Export the `CMAKE_MAKE_PROGRAM` environment variable to specify which generator to use. (Default: `Ninja`)
 
 ### MSYSTEM
-This variable is automatically set by MSYS2, MINGW64 and MINGW32. CygWin users must set this environment variable manually.
+This environment variable is automatically set by MSYS2, MINGW64 and MINGW32. Cygwin users must set it manually.
 
 Example: `export MSYSTEM=CYGWIN`
 
-## Procedure example using __MINGW64__
+## Examples
+
+### Using __MINGW64__
 The example below will test every tool found in `C:\IAR_Systems\EW` using MINGW64:
 ```bash
 export IAR_TOOL_ROOT=/c/IAR_Systems/EW
@@ -44,7 +56,7 @@ cd ~/cmake-tutorial/tests
 ./run-tests.sh
 ```
 
-## Procedure example using __Ubuntu on WSL2__
+### Using __Ubuntu (/WSL2)__
 The example below will test every tool found in `/opt/iarsystems` using Ubuntu (WSL2):
 ```bash
 git clone https://github.com/iarsystems/cmake-tutorial ~
@@ -52,7 +64,7 @@ cd ~/cmake-tutorial/tests
 ./run-tests.sh
 ```
 
-## Procedure example using __CygWin64__
+### Using __Cygwin__
 The example below will test every tool found in `C:\IAR_Systems\EW` using Cygwin:
 ```bash
 export IAR_TOOL_ROOT=/cygdrive/c/IAR_Systems/EW