Add Walkthrough, Change View Container and Terminal Icon, Fix Demo Video in README #185

Job	Run time
Generate CycloneDX	1m 5s
Build and Package (ubuntu-latest, x86_64-unknown-linux-gnu, linux-x64, linux, x64)	34s
style	48s
lint	59s
Build and Package (windows-latest, x86_64-pc-windows-msvc, win32-x64, win32, x64)	1m 18s
test	57s
AV Scan (ubuntu-latest, x86_64-unknown-linux-gnu, linux-x64, linux, x64)	3m 19s
AV Scan (windows-latest, x86_64-pc-windows-msvc, win32-x64, win32, x64)	3m 19s
Release	0s
Publish	0s
	12m 19s

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