docs: update samples in docs

Signed-off-by: Matthias Pichler <m.pichler@warrify.com>

Author: matthias-pichler

dsl.md

@@ -236,11 +236,11 @@ Errors are critical for both authors and runtimes as they provide a means to com
 *Retrying 5 times when an error with 503 is caught:*
 ```yaml
 try:
-  call: http
-  with:
-    method: get
-    endpoint:
-      uri: https://example-service.com/healthz
+  - call: http
+    with:
+      method: get
+      endpoint:
+        uri: https://example-service.com/healthz
 catch:
   errors:
     with:
@@ -342,7 +342,7 @@ document:
   version: '0.1.0'
 
 do:
-  validateEmail:
+  - name: validateEmail
     call: https://github.com/myorg/functions/validateEmailAddress@v1
     with:
       emailAddress: ${ .userEmail }
@@ -426,7 +426,7 @@ use:
           body:
             message: "${ \"Executed task '\($task.reference)'...\" }"
 do:
-  get:
+  - name: get
     call: http
     with:
       method: get