chore: added discord to readme

[michiosw]

Description

Readme update to include discord invite.

Type of change

Please delete options that are not relevant.

• Documentation update

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes (if applicable)

[github-actions]

🦙 MegaLinter status: ⚠️ WARNING

Descriptor	Linter	Files	Fixed	Errors	Elapsed time
⚠️ COPYPASTE	jscpd	yes		2	1.12s
✅ MARKDOWN	markdownlint	1	0	0	0.39s
⚠️ MARKDOWN	markdown-link-check	1		1	4.14s
✅ MARKDOWN	markdown-table-formatter	1	1	0	0.17s
⚠️ REPOSITORY	checkov	yes		3	10.45s
⚠️ REPOSITORY	devskim	yes		2	0.86s
✅ REPOSITORY	dustilock	yes		no	0.0s
✅ REPOSITORY	gitleaks	yes		no	0.14s
✅ REPOSITORY	git_diff	yes		no	0.0s
✅ REPOSITORY	grype	yes		no	10.88s
⚠️ REPOSITORY	kics	yes		31	2.18s
✅ REPOSITORY	secretlint	yes		no	0.64s
✅ REPOSITORY	syft	yes		no	1.02s
⚠️ REPOSITORY	trivy	yes		1	6.65s
✅ REPOSITORY	trivy-sbom	yes		no	0.07s
✅ REPOSITORY	trufflehog	yes		no	2.81s

See detailed report in MegaLinter reports
Set VALIDATE_ALL_CODEBASE: true in mega-linter.yml to validate all sources, not only the diff

MegaLinter is graciously provided by