Add author LFlinn

[LFlinn-scottLogic]

Have you (please tick each box to show completion):

• Checked that the build passes?
• Checked your spelling (you can use npm install followed by npx mdspell "**/{FILE_NAME}.md" --en-gb -a -n -x -t if that's your thing)
• Ensured that your author profile contains a profile image, and a brief description of yourself? (make it more interesting than just your job title!)

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