Update the README with more recent instructions

The README contained two things that were incorrect for my setup
(Emacs from source (30+) and elgot 1.15):

    - `use-package' now has support for fetching from git, albeit
      with different parameters
    - `eglot--managed-mode-hook' was deprecated some time ago (in
      eglot 1.6)-- one should use `eglot-managed-mode-hook' now.

This patch updates the README, preserving the old documentation,
but adding the above information.

1 files changed, 36 insertions, 2 deletions

diff --git a/README.md b/README.md
index cd48482..7dd3d22 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@ A Flymake backend for [Clippy](https://doc.rust-lang.org/stable/clippy/index.htm
 
 You probably want to install [rust-mode](https://github.com/rust-lang/rust-mode) first.
 
-With Emacs 29:
+With Emacs 29 and [vc-use-package](https://github.com/slotThe/vc-use-package):
 
 ```elisp
 (use-package clippy-flymake
@@ -14,6 +14,14 @@ With Emacs 29:
   :hook (rust-mode . clippy-flymake-setup-backend))
 ```
 
+With Emacs 30:
+
+``` elisp
+(use-package clippy-flymake
+  :vc (:url "https://git.sr.ht/~mgmarlow/clippy-flymake" :branch main)
+  :hook (rust-mode . clippy-flymake-setup-backend))
+```
+
 Alternatively, clone the repo and update your load path:
 
 ```
@@ -38,9 +46,11 @@ Eglot users require [a little extra setup](https://github.com/joaotavora/eglot/i
   (add-hook 'flymake-diagnostic-functions #'eglot-flymake-backend nil t)
   (flymake-mode 1))
 
-(add-hook 'eglot--managed-mode-hook #'manually-activate-flymake nil t)
+(add-hook 'eglot-managed-mode-hook #'manually-activate-flymake nil t)
 ```
 
+(Nb. prior to eglot 1.6, this hook was called `eglot--managed-mode-hook)
+
 You can confirm that Flymake is running correctly by opening up a Rust buffer and examining `flymake-running-backends':
 
 ```
@@ -51,6 +61,8 @@ Running backends: clippy-flymake-backend, eglot-flymake-backend
 
 ### Complete eglot + rust-mode + use-package example
 
+Prior to emacs 30 for the `:vc` specification, and prior to eglot 1.6 for the minor mode hook:
+
 ```elisp
 (use-package rust-mode
   :ensure t)
@@ -71,6 +83,28 @@ Running backends: clippy-flymake-backend, eglot-flymake-backend
   (add-to-list 'eglot-stay-out-of 'flymake))
 ```
 
+Emacs 30, eglot 1.6+:
+
+```elisp
+(use-package rust-mode
+  :ensure t)
+
+(use-package clippy-flymake
+  :vc (:url "https://git.sr.ht/~mgmarlow/clippy-flymake" :branch main)
+  :hook (rust-mode . clippy-flymake-setup-backend))
+
+(defun manually-activate-flymake ()
+  (add-hook 'flymake-diagnostic-functions #'eglot-flymake-backend nil t)
+  (flymake-mode 1))
+
+(use-package eglot
+  :ensure t
+  :hook ((rust-mode . eglot-ensure)
+         (eglot-managed-mode . manually-activate-flymake))
+  :config
+  (add-to-list 'eglot-stay-out-of 'flymake))
+```
+
 ## Contributing
 
 Please direct bug reports or patches to the [the mailing list](https://lists.sr.ht/~mgmarlow/public-inbox).