Updated Encryption (markdown)

Author: clowwindy

Encryption.md

@@ -56,8 +56,7 @@ Install [libsodium](https://github.com/jedisct1/libsodium) >= 1.0.0 if you want
 
     apt-get install build-essential
     wget https://github.com/jedisct1/libsodium/releases/download/1.0.1/libsodium-1.0.1.tar.gz
-    tar xf libsodium-1.0.1.tar.gz
-    cd libsodium-1.0.1
+    tar xf libsodium-1.0.1.tar.gz && cd libsodium-1.0.1
     ./configure && make -j2 && make install
     ldconfig