Unexpected output in for loop document due to text : C++ [Informative]

[animeshsrivastava24]

Refer to Line 72 of https://github.com/arduino/reference-en/blob/master/Language/Structure/Control%20Structure/for.adoc

It produces an output

The output should be rather:

there is also one more occurrence of C++ in further documentation of the same file.

[animeshsrivastava24]

@per1234 I have found the solution to this issue, but I believed that this might stand as an issue as it may help contributors in future contributions.

Please refer to :

1. backticks don't produce literal passthrough asciidoctor/asciidoctor#1083
2. Add built-in attribute for C++ named cpp asciidoctor/asciidoctor#1208

The problem arose as C++ often gets misinterpreted as passthrough text.
It must be written as:

pass:[C++]

for proper working and getting the desired output.

I'll soon send a PR for fixing this issue. Eagerly waiting for your valuable review on PR #692.