Create readme.md

Author: javaHelper

08-spring-cloud-config-server/readme.md

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+# Spring Cloud Config server
+
+HTTP GET: `http://localhost:8082/api/address/test`
+
+Response:
+
+```
+My Address is High Street Park!
+```
+
+----
+
+HTTP POST:
+
+```
+curl --location --request POST 'http://localhost:8082/actuator/refresh'
+```
+
+Response:
+
+```
+[
+    "config.client.version",
+    "address.test"
+]
+```
+
+----
+
+
+HTTP GET: `http://localhost:8082/api/address/test`
+
+Response:
+
+```
+My Address is High Street Park! - Something has changed! ===>
+```