docs: misc (#29719)

Co-authored-by: Evgeni Chasnovski <evgeni.chasnovski@gmail.com>
Co-authored-by: Lauri Heiskanen <lauri.heiskanen@nimble.fi>
Co-authored-by: Piotr Doroszewski <5605596+Doroszewski@users.noreply.github.com>
Co-authored-by: Tobiasz Laskowski <tobil4sk@outlook.com>
Co-authored-by: ariel-lindemann <41641978+ariel-lindemann@users.noreply.github.com>
Co-authored-by: glepnir <glephunter@gmail.com>
Co-authored-by: zeertzjq <zeertzjq@outlook.com>

runtime/lua/vim/_meta/vimfn.lua

@@ -1593,7 +1593,7 @@ function vim.fn.eventhandler() end
 --- On MS-Windows the ".exe", ".bat", etc. can optionally be
 --- included.  Then the extensions in $PATHEXT are tried.  Thus if
 --- "foo.exe" does not exist, "foo.exe.bat" can be found.  If
---- $PATHEXT is not set then ".exe;.com;.bat;.cmd" is used.  A dot
+--- $PATHEXT is not set then ".com;.exe;.bat;.cmd" is used.  A dot
 --- by itself can be used in $PATHEXT to try using the name
 --- without an extension.  When 'shell' looks like a Unix shell,
 --- then the name is also tried without adding an extension.

runtime/lua/vim/filetype.lua

@@ -2518,7 +2518,7 @@ end
 ---     ['.*/etc/foo/.*%.conf'] = { 'dosini', { priority = 10 } },
 ---     -- A pattern containing an environment variable
 ---     ['${XDG_CONFIG_HOME}/foo/git'] = 'git',
----     ['README.(%a+)$'] = function(path, bufnr, ext)
+---     ['.*README.(%a+)'] = function(path, bufnr, ext)
 ---       if ext == 'md' then
 ---         return 'markdown'
 ---       elseif ext == 'rst' then

runtime/lua/vim/lsp.lua

@@ -1031,7 +1031,7 @@ end
 --- Provides an interface between the built-in client and a `formatexpr` function.
 ---
 --- Currently only supports a single client. This can be set via
---- `setlocal formatexpr=v:lua.vim.lsp.formatexpr()` but will typically or in `on_attach`
+--- `setlocal formatexpr=v:lua.vim.lsp.formatexpr()` or (more typically) in `on_attach`
 --- via `vim.bo[bufnr].formatexpr = 'v:lua.vim.lsp.formatexpr(#{timeout_ms:250})'`.
 ---
 ---@param opts? vim.lsp.formatexpr.Opts