Update readme

README.md

@@ -2,7 +2,18 @@
 
 Stratus Red Team is "[Atomic Red Team](https://github.com/redcanaryco/atomic-red-team)™" for the cloud, allowing to emulate offensive attack techniques in a granular and self-contained manner.
 
-## Installation
+## Getting Started
+
+Stratus Red Team is a self-contained Go binary.
+
+See the documentation at **[stratus-red-team.cloud](https://stratus-red-team.cloud/)**:
+- [Stratus Red Team Concepts](https://stratus-red-team.cloud/user-guide/getting-started/#concepts)
+
+- [Installing Stratus Red Team](https://stratus-red-team.cloud/user-guide/getting-started/#installation) - Homebrew formula, Docker image and pre-built binaries available
+
+- [Available Attack Techniques](https://stratus-red-team.cloud/attack-techniques/list/), mapped to MITREA ATT&CK
+
+## Development
 
 ### Building locally
 
@@ -11,15 +22,6 @@ make
 ./bin/stratus --help
 ```
 
-### Docker
-
-```bash
-docker build . -t stratus-red-team
-docker run --rm stratus-red-team list
-```
-
-## Development
-
 ### Running locally
 
 ```bash