docs: small fixes (#27364)

Co-authored-by: C.D. MacEachern <craig.daniel.maceachern@gmail.com>
Co-authored-by: Ynda Jas <yndajas@gmail.com>
Co-authored-by: Owen Hines <TheOdd@users.noreply.github.com>
Co-authored-by: Wanten <41904684+WantenMN@users.noreply.github.com>
Co-authored-by: lukasvrenner <118417051+lukasvrenner@users.noreply.github.com>
Co-authored-by: cuinix <915115094@qq.com>

runtime/lua/nvim/health.lua

@@ -17,7 +17,7 @@ local shell_error = function()
   return vim.v.shell_error ~= 0
 end
 
-local suggest_faq = 'https://github.com/neovim/neovim/blob/docs/install/BUILD.md#building'
+local suggest_faq = 'https://github.com/neovim/neovim/blob/master/BUILD.md#building'
 
 local function check_runtime()
   health.start('Runtime')

runtime/lua/vim/lsp/client.lua

@@ -15,7 +15,7 @@ local validate = vim.validate
 --- @inlinedoc
 ---
 --- Allow using incremental sync for buffer edits
---- (defailt: `true`)
+--- (default: `true`)
 --- @field allow_incremental_sync? boolean
 ---
 --- Debounce `didChange` notifications to the server by the given number in milliseconds.

runtime/lua/vim/lsp/util.lua

@@ -690,7 +690,7 @@ end
 ---
 --- It deletes existing buffers that conflict with the renamed file name only when
 --- * `opts` requests overwriting; or
---- * the conflicting buffers are not loaded, so that deleting thme does not result in data loss.
+--- * the conflicting buffers are not loaded, so that deleting them does not result in data loss.
 ---
 --- @param old_fname string
 --- @param new_fname string