refactor!: rename fun to fn

Author: Marc Jakobi

README.md

@@ -145,18 +145,20 @@ ls.add_snippets('haskell', haskell_snippets, { key = 'haskell' })
 #### `haskell-snippets.data.ins`
 
 - Trigger: `ins`
-- [ ] TODO: Add gif
+
+![tty](https://github.com/mrcjkb/haskell-snippets.nvim/assets/12857160/60ab78d6-62f6-4b8a-97f3-6c211d4333dd)
 
 #### `haskell-snippets.data.constraint`
 
 - Trigger: `=>`
-- [ ] TODO: Add gif
+
+![tty](https://github.com/mrcjkb/haskell-snippets.nvim/assets/12857160/018d0044-ae47-416d-9989-43faf3d1e2e1)
 
 ### Functions
 
 #### `haskell-snippets.functions.fun`
 
-- Trigger: `fun`
+- Trigger: `fn`
 - [ ] TODO: Add gif
 
 #### `haskell-snippets.functions.func`

doc/haskell-snippets.txt

@@ -49,7 +49,7 @@ ModuleSnippetCollection                                *ModuleSnippetCollection*
 
 
 ==============================================================================
-                                                         *haskell-snippets.data*
+                                                      *haskell-snippets.datadat*
 
  Snippets related to data
 

lua/haskell-snippets/functions.lua

@@ -81,15 +81,15 @@ local function build_multi_line_function_snippet(...)
   return build_function_snippet(true, ...)
 end
 
-functions.fun = s({
+functions.fn = s({
   trig = 'fn',
   dscr = 'Function and type signature',
 }, {
   insert(1, 'someFunc'),
   text(' :: '),
   dynamic(2, build_single_line_function_snippet, { 1 }),
 })
-table.insert(functions.all, functions.fun)
+table.insert(functions.all, functions.fn)
 
 functions.func = s({
   trig = 'func',