New "fzy" plugin

diff --git a/plugins/fzy/README.md b/plugins/fzy/README.md
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+## fzy
+
+Integrate *fzy*, "a simple, fast fuzzy finder for the terminal", into ZSH.
+
+### Usage
+
+Integrate *fzy*(1) into ZSH.
+
+### Key Bindings
+
+- `CTRL-R`: Paste the selected command from history into the command line.

diff --git a/plugins/fzy/fzy.zshrc b/plugins/fzy/fzy.zshrc
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+# AX-ZSH: Alex' Modular ZSH Configuration
+# fzy.zshrc: Setup Git
+
+axzsh_is_modern_terminal || return 91
+
+# Make sure that "fzy(1)" is installed
+(( $+commands[fzy] )) || return 1
+
+function history-fzy() {
+       BUFFER=$(fc -lnr 0 | fzy -l $((LINES/2)) -q "$LBUFFER")
+       CURSOR=$#BUFFER
+       zle reset-prompt
+}
+
+zle -N history-fzy
+bindkey '^r' history-fzy
+
+return 0