Learn Farsi: من پروفایل خود را در شبکه‌ی اجتماعی به‌روزرسانی کرده‌ام. - I have updated my profile on the social network.

A compound verb has two parts: a non-verb part (به‌روزرسانی, meaning update) and a light verb (کردن, meaning to do). To make the Present Perfect, you only conjugate the light verb. You take the past stem of کردن (کرد), add the past participle ending (ه), and then attach the personal suffix (ام for I). So it becomes به‌روزرسانی کرده‌ام.

Why does the sentence use پروفایل خود instead of پروفایل من for my profile?

خود means self. In Farsi, when the owner of an object is the same as the subject of the sentence (here, I am updating my own profile), it is very natural to use خود instead of the personal pronoun (من). It translates smoothly to my profile in English.

Why is there an extra ی at the end of شبکه in the phrase شبکه‌ی اجتماعی?

The words شبکه (network) and اجتماعی (social) are linked by an Ezafe, the linking vowel that connects nouns to adjectives. Because شبکه ends in a silent ه, the linking sound becomes ye. In modern spelling, this is often written out by adding the letter ی to make the pronunciation clear.

Why is را placed exactly where it is?