Fix typos under choosing an editor documentation.

[Vane-Arellano]

There are a couple of small typos in the Choosing An Editor documentation page that should be corrected for clarity and grammar.

Issues:

Typo in OS List
Current:

• "Visual Studio Code installs the code command by default on Windows on Linux..."

Suggested fix:

• "Visual Studio Code installs the code command by default on Windows and Linux..."

Grammar in Command Sequence
Current:

• "...sequence of command to create..."

Suggested fix:

• "...sequence of commands to create..."

These are minor, but fixing them would improve the polish of the documentation.

This PR fixes the issues mentioned: #173