nvim: init: Enable British English spell language

nvim/.config/nvim/init.lua

@@ -32,6 +32,7 @@ vim.o.diffopt        = 'filler,internal,algorithm:histogram,indent-heuristic'
 vim.o.scrolloff      = 999
 vim.o.formatoptions  = "crqn1j"
 vim.o.signcolumn     = "auto:1-2"
+vim.o.spelllang      = "en_gb"
 
 -- Disable providers we do not give a shit about
 vim.g.loaded_python3_provider = 0