Fixed the UtilsApi doc example, updated Readme

Author: Nick-S-2018

README.md

@@ -2,8 +2,6 @@
 Low-level client for Manticore Search.
 
 
-❗ WARNING: this is a development version of the client. The latest release's readme is https://github.com/manticoresoftware/manticoresearch-python/tree/2.2.0
-
 ## Requirements.
 
 Python 2.7 and 3.4+.
@@ -13,8 +11,8 @@ Minimum Manticore Search version is > 2.5.1 with HTTP protocol enabled.
 | Manticore Search  | manticoresearch-python   |     Python    |
 | ----------------- | ------------------------ | ------------- |
 | >= 4.2.1          | 2.0.x                    | >= 3.4        |
-| >= 4.0.2          | 1.0.6                    | >= 3.4        |
-| >= 2.5.1          | 1.0.5                    | >= 2.7        |
+| >= 4.0.2  < 4.2.1 | 1.0.6                    | >= 3.4        |
+| >= 2.5.1  < 4.0.2 | 1.0.5                    | >= 2.7        |
 
 
 ## Installation & Usage

docs/UtilsApi.md

@@ -38,7 +38,7 @@ configuration = manticoresearch.Configuration(
 with manticoresearch.ApiClient(configuration) as api_client:
     # Create an instance of the API class
     api_instance = manticoresearch.UtilsApi(api_client)
-    body = "["SHOW TABLES"]" # str | A query parameter string. 
+    body = "SHOW TABLES" # str | A query parameter string. 
 raw_response = True # bool | Optional parameter, defines a format of response. Can be set to `False` for Select only queries and set to `True` or omitted for any type of queries:  (optional) (default to True)
 
     try: