diff --git a/Readme.md b/Readme.md
index ebd8582..e8e52de 100644
--- a/Readme.md
+++ b/Readme.md
@@ -14,6 +14,7 @@ The default is `/build`.
 
 ### Build the radar
 ```
+yarn
 yarn start
 ```
 
@@ -21,6 +22,7 @@ Then open here: http://localhost:8080/build
 
 ### Build the radar with static files
 ```
+yarn
 yarn start:static
 ```
 
diff --git a/radar/2021-01-01/nats.md b/radar/2021-01-01/nats.md
index dc98d7b..8a0eabb 100644
--- a/radar/2021-01-01/nats.md
+++ b/radar/2021-01-01/nats.md
@@ -6,7 +6,7 @@ featured: true
 ---
 
 [NATS](https://nats.io/) is a cloud native messaging and stream-data system for modern distributed software systems.
-Two design-goals [design-goals](https://github.com/nats-io/nats-general/blob/master/architecture/DESIGN.md) were simplicity and performance.
+Two [design-goals](https://github.com/nats-io/nats-general/blob/master/architecture/DESIGN.md) were simplicity and performance.
 These are adopted by selecting [golang](https://golang.org/) for the server implementation and reducing the memory footprint for both: server- and client-side.
 The server-side provides simple and efficient horizontal scaling (e.g. deploying it inside Kubernetes) and the small client-footprint allows us to use it in embedded-systems, edge-computing and IoT devices e.g. for command and controll use-cases.
 Also, the long list of existing [integrations](https://docs.nats.io/compare-nats#integrations) and the plugin-systems bring a great flexibility.