I had a look at your article. When writing such articles which contain steps, you could present it in a manner that fulfils the requirement of minimum 500 words (minimum 300 words are also allowed for short, useful articles). You have written just 5-6 lines and clustered the images together. Instead, what you could have done was to begin with an introductory paragraph stating about how it sometimes becomes necessary to connect 2 computers (the type of work that may require such a connection), what is LAN, etc. Then give the step by step guidance, with an image for each step showing below the text of that step. After that, you could give trouble shooting tips - what to do if so-and-so thing happens while following the procedure or at the end if there is still a problem in connecting, how to resolve the problem, etc. At the end, put a few lines as a concluding paragraph. It is also important to put a good summary for an article.
In addition to the suggestion provided in previous responses to write on unique topics, I would advise you to check already approved articles. You will then understand how to submit the article in proper paragraphs, with headings and points being inserted with the use of HTML tags. The overall presentation then looks neat and reader-friendly.