docs: improve small details (#3687)

* docs: improve docs

* fix broken link

README.md

@@ -65,7 +65,7 @@ You can also discovery our new pay-as-you-go [pricing](https://zitadel.com/prici
 - Strong audit trail thanks to [event sourcing](https://docs.zitadel.com/docs/concepts/eventstore)
 - [Actions](https://docs.zitadel.ch/docs/concepts/features/actions) to react on events with custom code
 - [Branding](https://docs.zitadel.com/docs/guides/customization/branding) for a uniform user experience
-- [Cockroach database](https://www.cockroachlabs.com/) is the only dependency
+- [CockroachDB](https://www.cockroachlabs.com/) is the only dependency
 
 ## Features
 
@@ -81,8 +81,10 @@ You can also discovery our new pay-as-you-go [pricing](https://zitadel.com/prici
 - Self-registration including verification
 - User self service
 - [Service Accounts](https://docs.zitadel.com/docs/guides/authentication/serviceusers)
+- [OpenID Connect certified](https://openid.net/certification/#OPs)
+- 🚧 [SAML 2.0](https://github.com/zitadel/zitadel/pull/3618)
 
-### Client libraries
+## Client libraries
 
 <!-- TODO: check other libraries -->
 
@@ -104,6 +106,14 @@ You can also discovery our new pay-as-you-go [pricing](https://zitadel.com/prici
 
 Details about how to contribute you can find in the [Contribution Guide](./CONTRIBUTING.md)
 
+## Contributors
+
+<a href="https://github.com/zitadel/zitadel/graphs/contributors">
+  <img src="https://contrib.rocks/image?repo=zitadel/zitadel" />
+</a>
+
+Made with [contrib.rocks](https://contrib.rocks).
+
 ## Showcase
 
 <!-- TODO: Replace Images-->

docs/docs/guides/overview.mdx

@@ -7,9 +7,7 @@ import Column from "../../src/components/column";
 
 With our guides you will learn everything you need to know about specific topics. You get step-by-step instructions for certain tasks and have a knowledge check at the end.
 
-You can either use our cloud-instance [zitadel.ch](https://zitadel.com) or deploy a dedicated **ZITADEL** instance. To get started, we recommend you to try out our free tier first. Jump directly to the [get started](./basics/get-started) docs.
-
-When you are familiar with the ZITADEL usage, you can choose to stay on [zitadel.ch](./installation/shared-cloud), order your own [dedicated instance](./installation/shared-cloud) which is also availabe on premise, or install ZITADEL easily on your own using [Custom Kubernetes Resources](./installation/crd), [GitOps](./installation/gitops) or [ORBOS](./installation/orbos).
+You can either use our cloud-instance [zitadel.com](https://zitadel.com) or deploy your own **ZITADEL** instance. To get started, we recommend you to try out our free tier first. Jump directly to the [get started](./guides/installation) docs.
 
 <Column>
   <ListWrapper title="Get to know ZITADEL">
@@ -17,7 +15,7 @@ When you are familiar with the ZITADEL usage, you can choose to stay on [zitadel
       link="/docs/guides/basics/get-started"
       type={ICONTYPE.START}
       title="Get started"
-      description="Try out zitadel.ch"
+      description="Try out zitadel.com"
     />
     <ListElement
       link="/docs/guides/basics/organizations"
@@ -103,10 +101,10 @@ When you are familiar with the ZITADEL usage, you can choose to stay on [zitadel
   </ListWrapper>
   <ListWrapper title="Installation">
     <ListElement
-      link="/docs/guides/installation/shared-cloud"
+      link="/docs/guides/installation"
       type={ICONTYPE.SYSTEM}
       title="Managed"
-      description="Shared ZITADEL Cloud or Dedicated Instance"
+      description="Learn to install ZITADEL"
     />
   </ListWrapper>
 </Column>

docs/src/pages/index.js

@@ -67,7 +67,7 @@ const features = [
               description=""
             />
             <ListElement
-              link="docs/guides/installation/shared-cloud"
+              link="docs/guides/installation"
               type={ICONTYPE.STORAGE}
               title="Installation"
               description=""