MQE-2501: release 2.7.0 documentation

Author: jilu1

composer.json

@@ -20,7 +20,7 @@
         "codeception/module-asserts": "^1.1",
         "codeception/module-sequence": "^1.0",
         "codeception/module-webdriver": "^1.0",
-        "composer/composer": "^1.6",
+        "composer/composer": "^1.9||^2.0",
         "csharpru/vault-php": "~3.5.3",
         "csharpru/vault-php-guzzle6-transport": "^2.0",
         "flow/jsonpath": ">0.2",