Bump version for 2.0.0 release + update readme

[jjw24]

Bump version for 2.0.0 release + update readme

[gitstream-cm]

🥷 Code experts: Jack251970

jjw24, Jack251970 have most 👩‍💻 activity in the files.
jjw24, VictoriousRaptor have most 🧠 knowledge in the files.

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Flow.Launcher.Plugin/Flow.Launcher.Plugin.csproj

Activity based on git-commit:

	jjw24	Jack251970
SEP
AUG
JUL	4 additions & 4 deletions	5 additions & 4 deletions
JUN	4 additions & 4 deletions
MAY
APR		3 additions & 1 deletions

Knowledge based on git-blame:
jjw24: 9%

README.md

Activity based on git-commit:

	jjw24	Jack251970
SEP
AUG
JUL
JUN		4 additions & 0 deletions
MAY
APR	1 additions & 0 deletions

Knowledge based on git-blame:
VictoriousRaptor: 31%
jjw24: 26%

appveyor.yml

Activity based on git-commit:

	jjw24	Jack251970
SEP
AUG
JUL	1 additions & 1 deletions
JUN	5 additions & 3 deletions
MAY	11 additions & 10 deletions
APR

Knowledge based on git-blame:
jjw24: 36%
VictoriousRaptor: 1%

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[gitstream-cm]

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[gitstream-cm]

Be a legend 🏆 by adding a before and after screenshot of the changes you made, especially if they are around UI/UX.