fix: examples in dsl-reference

Signed-off-by: Matthias Pichler <[email protected]>

Author: matthias-pichler

dsl-reference.md

@@ -555,8 +555,8 @@ do:
                 one:
                   with:
                     type: com.fake.petclinic.pets.checkup.completed.v2
-              output:
-                as: '.pets + [{ "id": $pet.id }]'        
+          output:
+            as: '.pets + [{ "id": $pet.id }]'        
 ```
 
 #### Fork
@@ -1113,7 +1113,7 @@ document:
 use:
   secrets:
     - usernamePasswordSecret
-  authentication:
+  authentications:
     sampleBasicFromSecret:
       basic:
         use: usernamePasswordSecret