I wrote a blog post on my personal blog discussing my life and how I joined this company and the things we are working on. However, I quoted (and linked to) a tweet by a competitor of ours.
I felt this was necessary as I had only written the post after seeing the tweet, and it was just me giving credit to the person/company. It's just secondary that the poster works for a competitor of ours.
Today, I got a stern notice asking me to remove the reference to the tweet (and the competitor) from my blog post. Its "not up for discussion", and that "If I don't, it won't be good for you".
I'd assumed that any content on my personal blog post won't be under this purview. At no point in the blog post did I write anything against either of the companies.
Should I take it up to HR? Assuming I'd want to fight this, how should I proceed?