docs: add highlight group examples with blend and inherit options

readme.md

@@ -123,9 +123,13 @@ require("rose-pine").setup({
         -- },
     },
 
+	-- NOTE: Highlight groups are extended (merged) by default. Disable this
+	-- per group via `inherit = false`
     highlight_groups = {
         -- Comment = { fg = "foam" },
+        -- StatusLine = { fg = "love", bg = "love", blend = 15 },
         -- VertSplit = { fg = "muted", bg = "muted" },
+        -- Visual = { fg = "base", bg = "text", inherit = false },
     },
 
     before_highlight = function(group, highlight, palette)