init/diagnostics: clearify wording for signs description

doc: fix un-buildable example code in pure-lua-config section

docs/manual/tips/pure-lua-config.md

@@ -23,7 +23,7 @@ manner.
   # flake.nix. For the sake of the argument, we will assume that the Neovim lua
   # configuration is in a nvim/ directory relative to flake.nix.
   vim = {
-    additionalRuntimeDirectories = [
+    additionalRuntimePaths = [
       # This will be added to Neovim's runtime paths. Conceptually, this behaves
       # very similarly to ~/.config/nvim but you may not place a top-level
       # init.lua to be able to require it directly.
@@ -41,7 +41,7 @@ directory, and call it with [](#opt-vim.luaConfigRC).
 ```nix
 {pkgs, ...}: {
   vim = {
-    additionalRuntimeDirectories = [
+    additionalRuntimePaths = [
       # You can list more than one file here.
       ./nvim-custom-1
 

modules/neovim/init/clipboard.nix

@@ -20,7 +20,7 @@ in {
         '';
 
         registers = mkOption {
-          type = either str (listOf str);
+          type = str;
           default = "";
           example = "unnamedplus";
           description = ''
@@ -33,8 +33,8 @@ in {
             `"+"` ({command}`:h quoteplus`) instead of register `"*"` for all yank, delete,
             change and put operations which would normally go to the unnamed register.
 
-            When `unnamed` and `unnamedplus` is included simultaneously yank and delete
+            When `unnamed` and `unnamedplus` is included simultaneously as `"unnamed,unnamedplus"`,
-            operations (but not put) will additionally copy the text into register `"*"`.
+            yank and delete operations (but not put) will additionally copy the text into register `"*"`.
 
             Please see  {command}`:h clipboard` for more details.
 

modules/neovim/init/diagnostics.nix

@@ -69,7 +69,7 @@
           Use signs for diagnostics. See {command}`:help diagnostic-signs`.
 
           :::{.note}
-          The code presented in that help section uses lua expressions as object keys which
+          The code presented in that example section uses Lua expressions as object keys which
           only translate well if you use `lib.generators.mkLuaInline` as in the example.
           :::
         '';