Update vimrc: fix vim-bindzone plugin URI and change colorscheme to 'nord'

.vimrc

@@ -33,7 +33,7 @@ Plug 'LaTeX-Box-Team/LaTeX-Box'
 Plug 'SirVer/ultisnips'
 Plug 'honza/vim-snippets'
 Plug 'rkitover/vimpager'
-Plug 'http://git.openics.org/kolter/vim-bindzone.git'
+Plug 'https://git.openics.org/kolter/vim-bindzone.git'
 call plug#end()
 " }}}
 
@@ -82,7 +82,7 @@ endif
 syntax on
 set t_Co=256
 set bg=dark
-colorscheme grb256
+colorscheme nord
 " }}}
 
 " {{{ Interface Settings