Add a note on pricing?

While I was looking to adopt this, I wished to see a section on how would be the estimated pricing look like per month, maybe something like:


| product | pricing model | estimate | 
|----|-----|----|
| cloud run | per-event |  ~$0-2 | 
| dataflow | per-gb streamed (?) | $20-30 | 
| **total** | .. | $??? |