Fixing typo in 09-04-Testing_for_Weak_Encryption (#1150)

* Fixing typo in 09-04-Testing_for_Weak_Encryption - paraphrase for better suggestion

document/4-Web_Application_Security_Testing/09-Testing_for_Weak_Cryptography/04-Testing_for_Weak_Encryption.md

@@ -8,7 +8,7 @@
 
 Incorrect uses of encryption algorithms may result in sensitive data exposure, key leakage, broken authentication, insecure session, and spoofing attacks. There are some encryption or hash algorithms known to be weak and are not suggested for use such as MD5 and RC4.
 
-In addition to the right choices of secure encryption or hash algorithms, the right uses of parameters also matter for the security level. For example, ECB (Electronic Code Book) mode is not suggested for use in asymmetric encryption.
+In addition to the right choices of secure encryption or hash algorithms, the right uses of parameters also matter for the security level. For example, ECB (Electronic Code Book) mode generally should not be used.
 
 ## Test Objectives