Fix linux.forensics.environment variables spellcheck (#899)

Co-authored-by: Mike Cohen <[email protected]>

content/exchange/artifacts/Linux.Forensics.EnvironmentVariables.yaml

@@ -2,8 +2,6 @@ name: Linux.Forensics.EnvironmentVariables
 author: Idan Beit-Yosef @ ibyf0r3ns1cs
 description: |
   This artifact detects potential persistence mechanisms on Linux systems by analyzing environment variable files and login scripts.  
-  Adversaries may modify these files to establish persistence by injecting commands that execute malicious scripts or binaries upon user login or shell initialization.  
-  This artifact focuses on identifying such modifications by scanning for environment variable alterations, network utilities, and scripting languages commonly used in attacks.  
   
   **MITRE ATT&CK**: [T1546.004](https://attack.mitre.org/techniques/T1546/004/)