Update README.md

Author: flexferrum

README.md

@@ -363,7 +363,9 @@ Currently, Jinja2Cpp supports the limited number of Jinja2 features. By the way,
 - limited number of functions (**range**, **loop.cycle**)
 - 'if' statement (with 'elif' and 'else' branches)
 - 'for' statement (with 'else' branch and 'if' part support)
+- 'extends' statement
 - 'set' statement
+- recursive loops
 
 # Supported compilers
 Compilation of Jinja2Cpp tested on the following compilers (with C++14 enabled feature):