Move function out of maps.vim to vimrc

Does not directly create a mapping and should stay somewhere else than
the mapping file.

.config/nvim/init.vim

@@ -517,6 +517,15 @@ call matchadd('ColorColumn', '\%81v', 100)
 " the directories it is supposed to
 au BufNewFile,BufRead /dev/shm/gopass.* setlocal noswapfile nobackup noundofile
 
+function! SearchWiki()
+  let l:curpath=getcwd()
+  :execute(":cd " . g:wiki_root)
+  let l:texttofind=input("Search in Notes: ")
+  :execute(":CtrlSF " . l:texttofind)
+  :CtrlSFFocus
+  :execute(":cd " . l:curpath)
+endfunction
+
 " }}}
 " KEYBINDINGS {{{
 " ================================================================================