Use zplug for modules

.gitmodules

@@ -1,6 +0,0 @@
-[submodule "zsh-syntax-highlighting"]
-	path = zsh-syntax-highlighting
-	url = https://github.com/zsh-users/zsh-syntax-highlighting
-[submodule "fzf"]
-	path = fzf
-	url = https://github.com/junegunn/fzf

README.md

@@ -3,8 +3,8 @@
 ## Installation
 
 1. Clone this directory as `$HOME/.zsh`.
-2. Do `git submodule init` and `git submodule update` in this directory.
-3. Put following code in `$HOME/.zshrc:
+2. Install `zplug`, preferably from distribution repository, if not, [as described on github](https://github.com/zplug/zplug).
+3. Put following code in `$HOME/.zshrc`:
 ```
 source $HOME/.zsh/zshrc
 ```

fzf

@@ -1 +0,0 @@
-Subproject commit 6654239c94667fefb38d76cfc47b6abf5ced8149

zsh-syntax-highlighting

@@ -1 +0,0 @@
-Subproject commit a33c72e8389b3d984d25fd556d86878777c76571

zshrc

@@ -640,17 +640,6 @@ for command in find wget git; \
 # load zsh extended move
 autoload -Uz zmv
 
-#---------------------------------- Addons ------------------------------------
-
-if [[ -d ${ZDOTDIR:-$HOME}/.zsh/zsh-syntax-highlighting ]]; then
-	source ${ZDOTDIR:-$HOME}/.zsh/zsh-syntax-highlighting/zsh-syntax-highlighting.zsh
-fi
-if command-exists fzf && [[ -d ${ZDOTDIR:-$HOME}/.zsh/fzf ]]; then
-	source ${ZDOTDIR:-$HOME}/.zsh/fzf/shell/completion.zsh
-	source ${ZDOTDIR:-$HOME}/.zsh/fzf/shell/key-bindings.zsh
-fi
-
-
 #---------------------------------- Machine specific --------------------------
 
 if [[ -r $HOME/.zlocal ]]; then
@@ -681,3 +670,26 @@ if [[ $commands[kubectl] ]]; then
   source <(kubectl completion zsh);
 fi
 
+
+#---------------------------------- Addons ------------------------------------
+
+if [[ -f '/usr/share/zplug/init.zsh' ]]; then
+  source /usr/share/zplug/init.zsh
+  zplug "plugins/git", from:oh-my-zsh
+  zplug "plugins/sudo", from:oh-my-zsh
+  zplug "plugins/command-not-found", from:oh-my-zsh
+  zplug "zsh-users/zsh-syntax-highlighting"
+  zplug "zsh-users/zsh-autosuggestions"
+  zplug "zsh-users/zsh-history-substring-search"
+  zplug "zsh-users/zsh-completions"
+  zplug "junegunn/fzf"
+fi
+
+if ! zplug check --verbose; then
+    printf "Install? [y/N]: "
+    if read -q; then
+        echo; zplug install
+    fi
+fi
+zplug load
+