Merge pull request #1957 from mintlayer/update_readme

Cleanup README.md and SECURITY.md, fix broken links

Author: ImplOfAnImpl

README.md

@@ -4,9 +4,9 @@ Welcome to the official Github repository for Mintlayer, an innovative, open-sou
 
 ## Security
 
-Discovered a potential security issue? We urge you to contact us directly at security@mintlayer.org. When reporting, please encrypt your report using Ben's GPG key which can be found [here](https://www.mintlayer.org/assets/keys/ben).
+Discovered a potential security issue? We urge you to contact us directly, see our [SECURITY.md](https://github.com/mintlayer/mintlayer-core/blob/master/SECURITY.md) for the guidelines.
 
-Mintlayer runs a [bug bounty program](https://www.mintlayer.org/bug-bounties), meaning that if your report is valid, you could be eligible for a reward paid in ML tokens. Please refrain from publicly disclosing any potential security issues until our core Mintlayer team has confirmed that the matter can be shared. Further information can be found in our [SECURITY.md](https://github.com/mintlayer/mintlayer-core/blob/master/SECURITY.md) guidelines.
+Mintlayer runs a [bug bounty program](https://www.mintlayer.org/bug-bounty-program), meaning that if your report is valid, you could be eligible for a reward paid in ML tokens. Please refrain from publicly disclosing any potential security issues until our core Mintlayer team has confirmed that the matter can be shared.
 
 ## Bug Reporting
 

SECURITY.md

@@ -1,9 +1,7 @@
-Mintlayer runs a responsible disclosure program for security issues, as such all security issues should be reported to security@mintlayer.org or enrico@mintlayer.org or samer.afach@mintlayer.org.
+Mintlayer runs a responsible disclosure program for security issues, as such all security issues should be reported to enrico@mintlayer.org. When reporting, please encrypt your report using Enrico's GPG key, which can be found [here](https://www.mintlayer.org/assets/keys/enrico).
 
-If you disclose a valid security issue then you may be eligible for a bounty paid in ML see the details [here](https://www.mintlayer.org/bug-bounties/).
+If you disclose a valid security issue, you may be eligible for a bounty paid in ML, see the details [here](https://www.mintlayer.org/bug-bounty-program).
 
-It's best to err on the side of caution, if you find something you think is security related but not eligible for the bounty or something you're not 100% sure about then let us know on the above email addresses anyway as we treat each report on a report by report basis so you may still be paid a bounty.
-
-GPG keys for Enrico and Sam can be found [here for Enrico](https://www.mintlayer.org/assets/keys/enrico) and [here for Sam](https://www.mintlayer.org/assets/keys/samer).
+It's best to err on the side of caution, so if you find something you think is security related but not eligible for the bounty or something you're not 100% sure about then let us know on the above email address anyway as we treat each report on a report by report basis so you may still be paid a bounty.
 
 Security issues may not be publicly announced until Mintlayer agrees.