Added obvious warning about spamming github to code of conduct

.github/CODE_OF_CONDUCT.md

@@ -1,3 +1,5 @@
 > By participating in the TShock for Terraria community, all members will adhere to maintaining decorum with respect to all humans, in and out of the community. Members will not engage in discussion that inappropriately disparages or marginalizes any group of people or any individual. Members will not attempt to further or advance an agenda to the point of being overbearing or close minded (such as through spreading FUD). Members will not abuse services provided to them and will follow the guidance of community leaders on a situational basis about what abuse consists of. Members will adhere to United States and international law. If members notice a violation of this code of conduct, they will not engage but will instead contact the leadership team on either the forums or Discord.
 
-> Do not attempt to circumvent or bypass the code of conduct by using clever logic or reasoning (e.g., insulting Facepunch members, because they weren't directly mentioned here).
+> Do not attempt to circumvent or bypass the code of conduct by using clever logic or reasoning (e.g., insulting Facepunch members, because they weren't directly mentioned here).
+
+> Do not abuse GitHub services by generating useless emails to all people who watch the repo. This includes unnecessary PR approvals and off-topic discussion, issue, and PR comments that serve no purpose. Due to the high visibility nature of actions that create emails, you may be blocked temporarily as your first warning.