docs: remove Rust Wiki link

With the new setup structure, this is no longer relevant.

README.md

@@ -219,7 +219,7 @@ require("nvim-lsp-installer").setup({
 | Reason                              | `reason_ls`                |
 | Rome                                | `rome`                     |
 | Ruby                                | `solargraph`               |
-| Rust [(wiki)][rust_analyzer]        | `rust_analyzer`            |
+| Rust                                | `rust_analyzer`            |
 | SQL                                 | `sqlls`                    |
 | SQL                                 | `sqls`                     |
 | Salt                                | `salt_ls`                  |
@@ -252,7 +252,6 @@ require("nvim-lsp-installer").setup({
 [eslint]: ./lua/nvim-lsp-installer/servers/eslint/README.md
 [tflint]: ./lua/nvim-lsp-installer/servers/tflint/README.md
 [pylsp]: ./lua/nvim-lsp-installer/servers/pylsp/README.md
-[rust_analyzer]: https://github.com/williamboman/nvim-lsp-installer/wiki/Rust
 
 ## Custom servers
 

doc/nvim-lsp-installer.txt

@@ -57,6 +57,7 @@ to call the `setup()` function _before_ you set up any servers: >
 Next, in your initialization files |init.lua|, setup the servers you want to use.
 Refer to |lspconfig| for more information! For example: >
 
+    require("nvim-lsp-installer").setup {}
     local lspconfig = require("lspconfig")
 
     local function on_attach(client, bufnr)