updates gramar on readme and removes extra line in SECURITY.md

Author: warnerp18

README.md

@@ -159,7 +159,8 @@ source and a list of supported platforms.
 
 ## Security
 
-For information about security of the Node.js project, see [Seucrity.md](https://github.com/nodejs/node/blob/master/SECURITY.md).
+For information on reporting security vulnerabilities in Node.js, see
+[SECURITY.md](./SECURITY.md).
 
 ## Current Project Team Members
 

SECURITY.md

@@ -1,4 +1,5 @@
 # Security
+
 If you find a security vulnerability in Node.js, please report it to
 security@nodejs.org. Please withhold public disclosure until after the security
 team has addressed the vulnerability.
@@ -11,7 +12,6 @@ security issue. Here are some examples of past issues and what the Security
 Response Team thinks of them. When in doubt, please do send us a report
 nonetheless.
 
-
 ## Public disclosure preferred
 
 - [#14519](https://github.com/nodejs/node/issues/14519): _Internal domain