Re-add protobuf

It needs both packages

Author: irbeam256

README.md

@@ -161,8 +161,9 @@ Fedora, RHEL:
 
 ```
 $ sudo dnf group install development-tools
-$ sudo dnf install automake protobuf-compiler protobuf-devel libutempter-devel \
-    zlib-ng-compat-devel ncurses-devel openssl-devel bash-completion tmux less
+$ sudo dnf install automake protobuf protobuf-compiler protobuf-devel \
+    libutempter-devel zlib-ng-compat-devel ncurses-devel openssl-devel \
+    bash-completion tmux less
 ```
 
 MacOS: