Add license and readmes

LICENSE

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+MIT License
+
+Copyright (c) 2024 Gökhan Sarı
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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+[![Release Charts](https://github.com/th0th/helm-charts/actions/workflows/release.yml/badge.svg)](https://github.com/th0th/helm-charts/actions/workflows/release.yml)
+
+A collection of helm charts.
+
+## Available charts
+
+* [listmonk](./charts/listmonk)
+
+## Sponsor
+
+[<img alt="WebGazer" src="https://github.com/th0th/helm-charts/assets/698079/aa290e3b-58cd-4cd4-a59b-7a011c0dd544" width="256" />](https://www.webgazer.io/?utm_source=github&utm_campaign=helm-charts&utm_term=visual)
+
+[WebGazer](https://www.webgazer.io/?utm_source=github&utm_campaign=helm-charts) is an uptime monitoring
+and analytics platform that checks your websites, cron jobs, or scheduled tasks on a regular basis. It notifies you with instant alerts
+in case of a problem. That way, you have peace of mind about the status of your service without manually checking it.
+
+## License
+
+Copyright © 2023, Gökhan Sarı. Released under the [MIT License](LICENSE).

charts/listmonk/README.md

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+# listmonk
+
+![Version: 0.1.0](https://img.shields.io/badge/Version-0.1.0-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: 3.0.0](https://img.shields.io/badge/AppVersion-3.0.0-informational?style=flat-square)
+
+High performance, self-hosted, newsletter and mailing list manager with a modern dashboard.
+
+## Install
+
+```shell
+$ helm upgrade \
+    --create-namespace \
+    --install listmonk listmonk \
+    --namespace listmonk \
+    --repo https://th0th.github.io/helm-charts \
+    --values values.yaml \
+    --version 0.1.9
+```
+
+## Uninstall
+
+```shell
+$ helm uninstall --namespace listmonk listmonk
+```
+
+## Values
+
+| Key | Type | Default | Description |
+|-----|------|---------|-------------|
+| ingress.annotations | object | `{}` | annotations for the ingress |
+| ingress.enable | bool | `false` | enable the ingress |
+| ingress.host | string | `"listmonk.local"` | host for the ingress |
+| ingress.tls | list | `[]` | tls configuration for the ingress |
+| listmonk.admin.password | string | `""` | the admin password |
+| listmonk.admin.username | string | `""` | the admin username |
+| listmonk.image.repository | string | `"listmonk/listmonk"` | the listmonk image repository |
+| listmonk.image.tag | string | `"v3.0.0"` | the listmonk image tag |
+| listmonk.replicas | int | `1` | the number of listmonk deployment replicas |
+| postgres.database | string | `"listmonk"` | the postgres database name |
+| postgres.image.repository | string | `"postgres"` | the postgres image repository |
+| postgres.image.tag | string | `"16-alpine"` | the postgres image tag |
+| postgres.password | string | `""` | the postgres password |
+| postgres.resources | object | `{}` | resources configuration for the postgres statefulset |
+| postgres.user | string | `""` | the postgres username |

charts/listmonk/values.yaml

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 ingress:
+  # -- annotations for the ingress
   annotations: {}
+  # -- enable the ingress
   enable: false
+  # -- host for the ingress
   host: listmonk.local
+  # -- tls configuration for the ingress
   tls: []
 listmonk:
   admin:
+    # -- the admin password
     password: ""
+    # -- the admin username
     username: ""
   image:
+    # -- the listmonk image repository
     repository: listmonk/listmonk
+    # -- the listmonk image tag
     tag: v3.0.0
+  # -- the number of listmonk deployment replicas
   replicas: 1
 postgres:
+  # -- the postgres database name
   database: listmonk
   image:
+    # -- the postgres image repository
     repository: postgres
+    # -- the postgres image tag
     tag: 16-alpine
+  # -- the postgres password
   password: ""
+  # -- resources configuration for the postgres statefulset
   resources: {}
+  # -- the postgres username
   user: ""