Add plugins for clojure

.vimrc

@@ -7,6 +7,12 @@ Plug 'bling/vim-airline'
 Plug 'mhinz/vim-signify'
 Plug 'Shougo/unite.vim'
 
+if executable('lein')
+  Plug 'guns/vim-sexp'
+  Plug 'tpope/vim-sexp-mappings-for-regular-people'
+  Plug 'tpope/vim-fireplace', {'for': 'clojure'}
+endif
+
 Plug 'trusktr/seti.vim'
 
 call plug#end()