Hello,
I have read your project description and I can do that job. Currently my position at work is WordPress developer and I am experienced in PHP (Framework: Laravel), CSS, HTML, JavaScript (you can review my portfolio)... I know how to create/update WordPress content: media (images, galleries, video, audio and other files), hyperlinks, text editing, page creation and etc.
Thank you for giving me a chance in advance.
P.S. This will be my first project on freelancer.com and it will be a great opportunity for me.