Great job putting a lot of effort into this! However, don't forget to add another banner at the end of your blog!!
After reading your blog, I noticed that there are some errors and parts where it would look better if you give it some extra touches.
First of all, if we look at the comments line, you wrote that /* / or / / is the appropriate grammar. However, for using comments, I believe that // or / */ is the correct grammar.
Also, when you explain each integer data types, it would be much better if you show examples into each and every one of them because it would help you study and memorize it.
When you try to explain ASCII code, it would also help you if you try to put it in your own words instead of just adding the link to it.
Overall, great job!! Looking forward to what you write next!