Merge pull request #4867 from toddhgardner/patch-2

Add CertKit to adopters list with details

Author: Blargian

docs/about-us/adopters.md

@@ -98,6 +98,7 @@ The following list of companies using ClickHouse and their success stories is as
 | [Castle](https://castle.io/)                                                                       | Fraud Detection                                 | Main product                                                | [Community Slack](https://clickhouse.com/slack)                                                                                                                                                                                                                                                                                                                                                                                                                                                             | —                                                                                          | —                                                                  |
 | [Cato Networks](https://www.catonetworks.com/)                                                     | Network Security                                | Security event analytics                                    | [Full Stack Developers Israel, Jan 2023](https://www.youtube.com/watch?v=Is4TC2gf5EM)                                                                                                                                                                                                                                                                                                                                                                                                                       | —                                                                                          | 8B (4TB) new events per day                                        |
 | [CDN77](https://www.cdn77.com/)                                                                    | Software & Technology                           | Content Delivery Network                                    | [GitHub Comment, April 2024](https://github.com/ClickHouse/ClickHouse/issues/61093#issuecomment-2070150654)                                                                                                                                                                                                                                                                                                                                                                                                 | —                                                                                          | —                                                                  |
+| [CertKit](https://www.certkit.io)                                                                  | Security                                        | Main product                                                | [Blog Post, December 2025](https://www.certkit.io/blog/searching-ct-logs-part-3)                                                                                                                                                                                                                                                                                                                                                                                                                            | 2 servers | 1.1 TB                                                                          |
 | [Chainbase](https://chainbase.online/)                                                             | Blockchain                                      | Main product                                                | [Documentation](https://docs.chainbase.online/r/data-cloud-studio/data-cloud-api)                                                                                                                                                                                                                                                                                                                                                                                                                           | —                                                                                          | —                                                                  |
 | [ChartMetric](https://chartmetric.com/)                                                            | Music Industry                                  | Analytics                                                   | [Meetup Video](https://youtu.be/gd1yWbnaalk)                                                                                                                                                                                                                                                                                                                                                                                                                                                                | —                                                                                          | —                                                                  |
 | [ChatLayer](https://chatlayer.ai/)                                                                 | AI virtual assistants                           | Analytics                                                   | [Press Release, December 2021](https://aiven.io/blog/aiven-for-clickhouse-now-generally-available)                                                                                                                                                                                                                                                                                                                                                                                                          | —                                                                                          | —                                                                  |