Update README.md

Author: yuvalavra

README.md

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 # lambda-persistency-poc
 See [Twistlock Labs](https://www.twistlock.com/labs-blog/gaining-persistency-vulnerable-lambdas/) for more info.
 
-A repository containing two POCs of an attacker gaining persistency on a vulnerable AWS python Lambda.
+A repository containing two PoCs of an attacker gaining persistency on a vulnerable AWS python Lambda.
 
-Both POCs compromise a Lambda instance by replacing the bootstrap process (the runtime) with a malicious version.
+Both PoCs compromise a Lambda instance by replacing the bootstrap process (the Lambda runtime) with a malicious version.
 
 
-- **poc** - a POC relying on an RCE that executes code in the context of the vulnerable function
-- **exteranl_process_poc** - a POC relying on an RCE that executes code in an external process 
+- **poc** - a PoC relying on an RCE primitive that executes code in the context of the vulnerable function
+- **exteranl_process_poc** - a PoC relying on an RCE primitive that executes code in a child proccess of the vulnerable function