Update README.md

Author: markqvist

README.md

@@ -219,7 +219,7 @@ You can help support the continued development of open, free and private communi
 Are certain features in the development roadmap are important to you or your organisation? Make them a reality quickly by sponsoring their implementation.
 
 ## Cryptographic Primitives
-Reticulum has been using a simple suite of efficient, strong and modern cryptographic primitives, with widely available implementations that can be used both on general-purpose CPUs and on microcontrollers. The necessary primitives are:
+Reticulum uses a simple suite of efficient, strong and modern cryptographic primitives, with widely available implementations that can be used both on general-purpose CPUs and on microcontrollers. The necessary primitives are:
 
 - Ed25519 for signatures
 - X22519 for ECDH key exchanges