doc: spelling (#2070)

Author: hezhizhen

README.md

@@ -118,9 +118,9 @@ Development is focused on:
 
 nvim-tree exposes a public API. This is non breaking, with additions made as necessary. See [:help nvim-tree-api](doc/nvim-tree-lua.txt)
 
-See wiki [Recipes](https://github.com/nvim-tree/nvim-tree.lua/wiki/Recipes) and [Tips](https://github.com/nvim-tree/nvim-tree.lua/wiki/Tips) for ideas and insipration.
+See wiki [Recipes](https://github.com/nvim-tree/nvim-tree.lua/wiki/Recipes) and [Tips](https://github.com/nvim-tree/nvim-tree.lua/wiki/Tips) for ideas and inspiration.
 
-Please raise a [feature request](https://github.com/nvim-tree/nvim-tree.lua/issues/new?assignees=&labels=feature+request&template=feature_request.md&title=) if the API is insufficent for your needs. [Contributions](#Contributing) are always welcome.
+Please raise a [feature request](https://github.com/nvim-tree/nvim-tree.lua/issues/new?assignees=&labels=feature+request&template=feature_request.md&title=) if the API is insufficient for your needs. [Contributions](#Contributing) are always welcome.
 
 You may also subscribe to events that nvim-tree will dispatch in a variety of situations, see [:help nvim-tree-events](doc/nvim-tree-lua.txt)
 

doc/nvim-tree-lua.txt

@@ -1551,7 +1551,7 @@ Mouse support is defined in |KeyBindings|
 
 Single left mouse mappings can be achieved via `<LeftRelease>`.
 
-Single right / middle mouse mappings will requre changes to |mousemodel| or |mouse|.
+Single right / middle mouse mappings will require changes to |mousemodel| or |mouse|.
 
 ==============================================================================
  6.1 DEFAULT MAPPINGS                             *nvim-tree-mappings-default*

lua/nvim-tree/colors.lua

@@ -88,8 +88,8 @@ local function get_links()
 end
 
 function M.setup()
-  local higlight_groups = get_hl_groups()
-  for k, d in pairs(higlight_groups) do
+  local highlight_groups = get_hl_groups()
+  for k, d in pairs(highlight_groups) do
     local gui = d.gui and " gui=" .. d.gui or ""
     local fg = d.fg and " guifg=" .. d.fg or ""
     local bg = d.bg and " guibg=" .. d.bg or ""

lua/nvim-tree/explorer/sorters.lua

@@ -131,7 +131,7 @@ local function node_comparator_name_ignorecase_or_not(a, b, ignorecase)
   end
 end
 
-function M.node_comparator_name_case_sensisive(a, b)
+function M.node_comparator_name_case_sensitive(a, b)
   return node_comparator_name_ignorecase_or_not(a, b, false)
 end
 
@@ -194,7 +194,7 @@ function M.setup(opts)
   elseif M.sort_by == "modification_time" then
     M.node_comparator = M.node_comparator_modification_time
   elseif M.sort_by == "case_sensitive" then
-    M.node_comparator = M.node_comparator_name_case_sensisive
+    M.node_comparator = M.node_comparator_name_case_sensitive
   elseif M.sort_by == "extension" then
     M.node_comparator = M.node_comparator_extension
   else