Added autoconf and libtool dependencies to Debian/Ubuntu build instructions in README.md

Author: gkiessling

README.md

@@ -227,7 +227,7 @@ Grab the deps and then follow this process.
 Debian/Ubuntu Dependencies:
 
 ```
-sudo apt install libboost-dev libsodium-dev \
+sudo apt install libboost-dev libsodium-dev autoconf libtool \
 	libprotobuf-dev protobuf-compiler libgflags-dev libutempter-dev libcurl4-openssl-dev \
     build-essential ninja-build cmake git zip
 ```