Update pages

04.internals.md

@@ -61,7 +61,7 @@ Due to some limitations of the parser, some parsing functions take `this_arg` an
 
 The lexer splits input string on set of tokens. The token structure (`./jerry-core/parser/js/lexer.h`) consists of three elements: token type, location of the token and optional data:
 
-```cpp
+{% highlight cpp %}
 typedef struct
 {
   locus loc;
@@ -69,7 +69,7 @@ typedef struct
   literal_index_t uid;
 }
 token;
-```
+{% endhighlight %}
 
 Location of token (`locus`). It is just an index of first token's character at a string that represents the program. Token types are are listed in lexer.h header file (`token_type` enum). Depending on token type, token specific data (`uid` field) has the different meaning.