Use " for better readability

Author: michael-simons

src/main/resources/application-comparison-yml.yml

@@ -1,18 +1,18 @@
 someValue: 4711
 
 example:
-    the-greeting: Hello, World!
+    the-greeting: "Hello, World!"
     interval: 1000
     precision: 42.23
     servers:
-        - name: springbootbuch
-          url: http://springbootbuch.de
-        - name: bootifultodos
-          url: http://bootifultodos.de
+        - name: "springbootbuch"
+          url: "http://springbootbuch.de"
+        - name: "bootifultodos"
+          url: "http://bootifultodos.de"
     environments:
         dev:
-            foo: bar
-            test: val
+            foo: "bar"
+            test: "val"
         prod:
-            foo: prodbar
-            test: prodval
+            foo: "prodbar"
+            test: "prodval"

src/main/resources/application.yml

@@ -1,33 +1,33 @@
 someValue: 4711
 
 example:
-    the-greeting: Hello, World!
+    the-greeting: "Hello, World!"
     interval: 1000
     precision: 42.23
     servers:
-        - name: springbootbuch
-          url: http://springbootbuch.de
+        - name: "springbootbuch"
+          url: "http://springbootbuch.de"
 
 ---
 spring:
-    profiles: demo1
+    profiles: "demo1"
 
 example:
-    the-greeting: Hello, Demo1!
+    the-greeting: "Hello, Demo1!"
     servers:
-        - name: demo
-          url: http://test.com
+        - name: "demo"
+          url: "http://test.com"
 
 ---
 spring:
-    profiles: demo2
+    profiles: "demo2"
 
 example:
-    the-greeting: Hello, Demo2!
+    the-greeting: "Hello, Demo2!"
     interval: 2000
     servers:
-        - name: bootifultodos
-          url: http://bootifultodos.de
+        - name: "bootifultodos"
+          url: "http://bootifultodos.de"
 
 ---
 spring: