docs: lsp, ui events, dev guidance, osc7

fix #34981

src/nvim/options.lua

@@ -2847,7 +2847,8 @@ local options = {
         Unset 'exrc' to stop further searching of 'exrc' files in parent
         directories, similar to |editorconfig.root|.
 
-        To get its own location, Lua exrc files can use |debug.getinfo()|.
+        To get its own location, a Lua exrc file can use |debug.getinfo()|.
+        See |lua-script-location|.
 
         Compare 'exrc' to |editorconfig|:
         - 'exrc' can execute any code; editorconfig only specifies settings.
@@ -2857,7 +2858,7 @@ local options = {
         1. Enable 'exrc'.
         2. Place LSP configs at ".nvim/lsp/*.lua" in your project root.
         3. Create ".nvim.lua" in your project root directory with this line: >lua
-             vim.cmd[[set runtimepath+=.nvim]]
+            vim.cmd[[set runtimepath+=.nvim]]
         <
         This option cannot be set from a |modeline| or in the |sandbox|, for
         security reasons.