The paper wallet should contain a private key.
If the private key is bip38 encrypted, you might need to decrypt it by downloading the sourcecode from
https://www.bitaddress.org and going to "wallet details"
Once you have an unencrypted private key, go to electrum, go to wallet => private keys => sweep, enter your private key, and sweep your paper wallet.
It is actually much safer to decrypt the wallet offline, instead of doing it on a website, to do this OP, download this file from here:
GitHub Repository (zip), verify the download authenticity and then continue with the steps mentioned above to decrypt the key and sweep it into Electrum.
TBH: it's possible electrum can even decrypt the private key for you... you might want to try this first before using bitaddress.org, i just never tried, and i don't want to sweep my paper wallets just to try it out.
Nope, Electrum won't decrypt the private key, one has to decrypt it first before sweeping it into Electrum.