covers and readme added
introduction to the c++ book added
 hihcglichting syntaxis test
c++ basics
flow control added
 exercises and corrections
table and images positioned
issue with tables
table issue 2
Merge branch 'master' of https://github.com/silvianunez/erle_gitbook_cplusplus
 exercises chapter 1-2
 chpaters 1-2 revision cpp code
 exercise added to control flow
funcions documentation + exercises
 exercises correction and new documentation added
arrays and strings documentation and exercises
 pointers documentation + exercises added
 add exercise
classes and structs documentation
 exercises classes added