Edit class open parenthensis and switch statement

Coding-style.md

@@ -48,11 +48,11 @@ if (x == 5) {
 }
 ```
 * For and while cycles: basically same rules as for if condition.
-* Switch: again basics are the same as for if condition. Case statements should be indented with tab and case body with 2 tabs.
+* Switch: again basics are the same as for if condition. Case statements should not be indented and case body should be intended with 1 tab.
 ```
 switch (switched) {
-    case 0:  // tab indent
-        ...  // 2 tabs indent
+case 0:  // no tab indent
+    ...  // 1 tab indent
     break;
 case 1:
     ...
@@ -85,15 +85,14 @@ if (i > 10 &&
 ```
 * Return values should not be generally wrapped with parentheses, only if needed.
 * Preprocessor directives start with `#` and always should start at the beginning of the line.
-* Classes: sections aka. public, protected, private should have same indentation as the class start itself. Opening parenthesis of class should be on the new line.
+* Classes: sections aka. public, protected, private should have same indentation as the class start itself. Opening parenthesis of class should be on the same line as class name.
 ```
-class my_class
-{
+class my_class {
 public:
     void class_function();
 private:
     int class_member_;
-}
+};
 ```
 * Operators: around all binary operators there always should be one space.
 ```