docs: extend documentation (#216)

* docs: add helm chart docs

Signed-off-by: Ramiz Polić <ramiz.polic@hotmail.com>

* docs: add OpenSSF Best Practices badge

Signed-off-by: Ramiz Polić <ramiz.polic@hotmail.com>

* docs: update helm chart readme

Signed-off-by: Ramiz Polić <ramiz.polic@hotmail.com>

* feat: update helm docs

Signed-off-by: Ramiz Polic <ramiz.polic@hotmail.com>
Signed-off-by: Ramiz Polić <ramiz.polic@hotmail.com>

* fix: helm installation guide

Signed-off-by: Ramiz Polic <ramiz.polic@hotmail.com>
Signed-off-by: Ramiz Polić <ramiz.polic@hotmail.com>

* docs: fix helm readme template

Signed-off-by: Ramiz Polić <ramiz.polic@hotmail.com>

---------

Signed-off-by: Ramiz Polić <ramiz.polic@hotmail.com>
Signed-off-by: Ramiz Polic <ramiz.polic@hotmail.com>

Makefile

@@ -106,7 +106,7 @@ generate: ## Run generation jobs
 
 .PHONY: generate-helm-docs
 generate-helm-docs:
-	helm-docs -s file -c charts/ -t README.md.gotmpl
+	helm-docs -s file -c deploy/charts/ -t README.md.gotmpl
 
 deps: bin/golangci-lint bin/licensei bin/kind bin/kurun bin/helm-docs
 deps: ## Install dependencies

README.md

@@ -2,6 +2,7 @@
 
 [![GitHub Workflow Status](https://img.shields.io/github/actions/workflow/status/bank-vaults/vault-secrets-webhook/ci.yaml?style=flat-square)](https://github.com/bank-vaults/vault-secrets-webhook/actions/workflows/ci.yaml)
 [![OpenSSF Scorecard](https://api.securityscorecards.dev/projects/github.com/bank-vaults/vault-secrets-webhook/badge?style=flat-square)](https://api.securityscorecards.dev/projects/github.com/bank-vaults/vault-secrets-webhook)
+[![OpenSSF Best Practices](https://www.bestpractices.dev/projects/7961/badge)](https://www.bestpractices.dev/projects/7961)
 [![Artifact Hub](https://img.shields.io/endpoint?url=https://artifacthub.io/badge/repository/vault-secrets-webhook)](https://artifacthub.io/packages/search?repo=vault-secrets-webhook)
 
 **A Kubernetes mutating webhook that makes direct secret injection into Pods possible.**