Update main_statements.md

flexferrum · web-flow · commit e689330afae1 · 2019-05-17T16:32:06.000+03:00
diff --git a/docs/usage/main_statements.md b/docs/usage/main_statements.md
@@ -6,8 +6,23 @@ nav_order: 2
 ---
 
 # Main Jinja2C++ statements
+{: .no_toc }
 
-### 'set' statement
+## Table of contents
+{: .no_toc .text-delta }
+
+1. TOC
+{:toc}
+
+## Condition statement
+
+TODO:
+
+## Iteration statement
+
+TODO:
+
+## 'set' statement
 But what if enum `Animals` will be in the namespace?
 
 ```c++
