Adds External Secrets to ADOPTERS.md

ADOPTERS.md

@@ -5,11 +5,11 @@ A non-exhaustive list of k3s adopters is provided below.  To add your company to
 - [Rocket.Chat](https://rocket.chat)
 - [Ayedo.de](https://ayedo.de/)
 - [PITS Global Data Recovery Services](https://www.pitsdatarecovery.net/)
-- 
+- [External Secrets Inc.](https://externalsecrets.com)
 
 **_Other Projects_** - While the above list provides a number of official adopters, k3s' compact and simple nature provides a clean base for other projects to build off of, or to embed.  Some such projects are listed below:
  - SUSE's RKE2 (or RKE Government) [RKE2](github.com/rancher/rke2/)
  - [k3ai](https://k3ai.github.io/)
  - SUSE's [Rancher Desktop](https://rancherdesktop.io/)
  - [Kairos](https://kairos.io)
- - [Getdeck Beiboot](https://github.com/Getdeck/beiboot)
+ - [Getdeck Beiboot](https://github.com/Getdeck/beiboot)
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