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README.md

@@ -38,9 +38,44 @@ Get current database tables:
 GET /tables
 ```
 
+Get table details:
+
+```
+GET /tables/:name
+```
+
 Execute select query:
 
 ```
-POST /query?query=SQL
+POST /select?query=SQL
-GET  /query?query=SQL
+ GET /select?query=SQL
-```
+```
+
+### Response formats
+
+Successful response:
+
+```json
+{
+  "columns": [
+    "column_name1",
+    "column_name2",
+    "column_name3"
+  ],
+  "rows": [
+    [
+      "column 1 value",
+      "column 2 value",
+      "column 3 value" 
+    ]
+  ]
+}
+```
+
+Error response:
+
+```json
+{
+  "error": "Error message"
+}
+```