feat(doc): add security information and STACKIT logo

Author: rubenhoenle

.github/images/stackit-logo.svg

@@ -1,11 +1,28 @@
+<div align="center">
+<br>
+<img src=".github/images/stackit-logo.svg" alt="STACKIT logo" width="50%"/>
+<br>
+<br>
+</div>
+
 # STACKIT Pulumi Provider (BETA)
 
-![logo.svg](docs/logo.svg)
+[![GitHub License](https://img.shields.io/github/license/stackitcloud/pulumi-stackit)](https://www.apache.org/licenses/LICENSE-2.0)
+
+This repository contains the STACKIT Pulumi Provider.
 
 The STACKIT Pulumi Provider lets you manage [STACKIT](https://www.stackit.de/en/) resources.
 
 This STACKIT Pulumi Provider is in a BETA state. More functionality will be supported soon. Your feedback is appreciated! Feel free to open GitHub issues to provide feature requests and bug reports.
 
+## Reporting issues
+
+If you encounter any issues or have suggestions for improvements, please open an issue in the repository or create a ticket in the [STACKIT Help Center](https://support.stackit.cloud/).
+
+## License
+
+Apache 2.0
+
 ## Installing
 
 This package is available for several languages/platforms:

README.md

@@ -0,0 +1,9 @@
+# Reporting Security Issues
+
+**Please do not report security vulnerabilities through public GitHub issues.**
+
+We at STACKIT take security seriously. We appreciate your efforts to responsibly disclose your findings, and will make every effort to acknowledge your contributions.
+
+To report a security issue, please send an email to [stackit-security@stackit.de](mailto:stackit-security@stackit.de).
+
+Our team will send a response indicating the next steps in handling your report. After the initial reply to your report, the security team will keep you informed of the progress towards a fix and full announcement, and may ask for additional information or guidance.