docs: fix broken links

docs/guides/using-helm-charts.md

@@ -252,7 +252,7 @@ The `api` module only contains the `garden.yml` file, but configures the base ch
 sets its own dependencies (those are not inherited) and specifies its `serviceResource.containerModule`.
 
 In our base chart, we make certain values like `name`, `image.repository` and `image.tag` required (using the
-[required](https://helm.sh/docs/developing_charts/#chart-development-tips-and-tricks)
+[required](https://helm.sh/docs/howto/charts_tips_and_tricks/)
 helper function) in order to enforce correct usage. We recommend enforcing constraints like that, so that mistakes
 can be caught quickly.
 

docs/reference/providers/kubernetes.md

@@ -790,7 +790,7 @@ The namespace where the secret is stored. If necessary, the secret may be copied
 
 Set to `cert-manager` to configure [cert-manager](https://github.com/jetstack/cert-manager) to manage this
 certificate. See our
-[cert-manager integration guide](https://docs.garden.io/using-garden/cert-manager-integration) for details.
+[cert-manager integration guide](https://docs.garden.io/guides/cert-manager-integration) for details.
 
 | Type     | Required |
 | -------- | -------- |
@@ -820,7 +820,7 @@ cert-manager configuration, for creating and managing TLS certificates. See the
 [providers](#providers) > [certManager](#providerscertmanager) > install
 
 Automatically install `cert-manager` on initialization. See the
-[cert-manager integration guide](https://docs.garden.io/using-garden/cert-manager-integration) for details.
+[cert-manager integration guide](https://docs.garden.io/guides/cert-manager-integration) for details.
 
 | Type      | Required | Default |
 | --------- | -------- | ------- |

docs/reference/providers/local-kubernetes.md

@@ -790,7 +790,7 @@ The namespace where the secret is stored. If necessary, the secret may be copied
 
 Set to `cert-manager` to configure [cert-manager](https://github.com/jetstack/cert-manager) to manage this
 certificate. See our
-[cert-manager integration guide](https://docs.garden.io/using-garden/cert-manager-integration) for details.
+[cert-manager integration guide](https://docs.garden.io/guides/cert-manager-integration) for details.
 
 | Type     | Required |
 | -------- | -------- |
@@ -820,7 +820,7 @@ cert-manager configuration, for creating and managing TLS certificates. See the
 [providers](#providers) > [certManager](#providerscertmanager) > install
 
 Automatically install `cert-manager` on initialization. See the
-[cert-manager integration guide](https://docs.garden.io/using-garden/cert-manager-integration) for details.
+[cert-manager integration guide](https://docs.garden.io/guides/cert-manager-integration) for details.
 
 | Type      | Required | Default |
 | --------- | -------- | ------- |

garden-service/src/plugins/kubernetes/config.ts

@@ -273,7 +273,7 @@ const tlsCertificateSchema = joi.object().keys({
       dedent`
       Set to \`cert-manager\` to configure [cert-manager](https://github.com/jetstack/cert-manager) to manage this
       certificate. See our
-      [cert-manager integration guide](https://docs.garden.io/using-garden/cert-manager-integration) for details.
+      [cert-manager integration guide](https://docs.garden.io/guides/cert-manager-integration) for details.
     `
     )
     .allow("cert-manager")
@@ -433,7 +433,7 @@ export const kubernetesConfigBase = providerConfigBaseSchema.keys({
     .keys({
       install: joi.bool().default(false).description(dedent`
           Automatically install \`cert-manager\` on initialization. See the
-          [cert-manager integration guide](https://docs.garden.io/using-garden/cert-manager-integration) for details.
+          [cert-manager integration guide](https://docs.garden.io/guides/cert-manager-integration) for details.
         `),
       email: joi
         .string()