Documentation - Update various markdown files for clarity and consistency #3405

Job	Run time
Check for non-ASCII characters	41s
Prepare and Build on macOS with Clang (x64)	23m 7s
Check code formatting	49s
Prepare and Build on Ubuntu with Clang (x64)	24m 16s
Prepare and Build on Windows with MSVC (x64)	24m 17s
Run GTest on macOS with Clang (x64)	1m 0s
Test on macOS (x64)	49s
Regression Test on macOS (x64)	23s
Test on Windows (x64)	35m 32s
Run GTest on Windows with MSVC (x64)	1m 32s
Run GTest on Linux with Clang (x64)	3m 6s
Prepare and Build on Ubuntu with GCC (No PCH)	39m 46s
Test on Linux with Clang (x64)	29m 3s
Regression Test on Linux with Clang (x64)	1m 54s
Regression Test on Windows (x64)	1m 4s
Summarize Test Results	3m 33s
Run GTest on Ubuntu with GCC (No PCH, Debug)	8m 5s
Build Documentation	0s
	3h 18m 57s

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