No. Those are rack-mount holes (or rack-mount 'braze-ons' as they used to be called in steel frame days).
Yes, you will need a disc-compatible fork, a rear adapter like one from A2Z Products and wheels with disc hubs. This will not be a small-ticket changeover; might be time to consider a new bike if you want discs.
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Originally Posted by Mark Twain
"Don't argue with stupid people; they will drag you down to their level and then beat you with experience."