Add posts repository to website project

This doesn't belong with the usual publish actions, so exclude posts from being published.

posts/README.org

@@ -0,0 +1 @@
+These posts are not a normal part of the website project. They are not published by the org publish functions, they use [[https://git.sr.ht/~ryuslash/tekuti-el][tekuti-el]] to post to my blog at https://blog.ryuslash.org.

posts/paredit-and-ielm.org

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+#+TITLE: IELM & Paredit
+#+TAGS: emacs
+#+COMMENT_STATUS: closed
+#+STATUS: publish
+#+DATE: Wed, 12 Apr 2023 07:02:45 GMT
+#+UPDATE_URL: /admin/modify-post/2023%252f04%252f12%252fielm-paredit
+
+For a while I've been bothered by being unable to use IELM to evaluate Emacs Lisp expressions. Then [[https://www.n16f.net/blog/making-ielm-more-comfortable/][Making IELM More Comfortable]] pointed out that using paredit in IELM causes the =RET= and =C-j= keybindings to be bound to the wrong functions and proposes to fix them. The given fix, however, appears to change the keybindings for all buffers using paredit. I don't want that, and Emacs can do better!
+
+A quick search yielded [[https://stackoverflow.com/a/13102821][Buffer-locally overriding minor-mode key bindings in Emacs]] suggesting a fix. My adaptation of that solution:
+
+#+begin_src emacs-lisp
+  (defun oni-elisp-ielm-remove-paredit-newline-keys ()
+    "Disable ‘C-j’ and ‘RET’ keybindings from ‘paredit-mode’."
+    (let ((oldmap (map-elt minor-mode-map-alist 'paredit-mode))
+          (newmap (make-sparse-keymap)))
+      (set-keymap-parent newmap oldmap)
+      (define-key newmap (kbd "RET") nil)
+      (define-key newmap (kbd "C-j") nil)
+      (make-local-variable 'minor-mode-overriding-map-alist)
+      (push `(paredit-mode . ,newmap) minor-mode-overriding-map-alist)))
+
+  (add-hook 'ielm-mode-hook #'oni-elisp-ielm-remove-paredit-newline-keys)
+#+end_src
+
+Defining =RET= and =C-j= as =nil= means that the keybinding defaults back to the major-mode keybinding.

publish.el

@@ -101,7 +101,7 @@
          :base-extension "svg\\|png\\|jpg"
          :publishing-function org-publish-attachment
          :publishing-directory "public/")
-        ("all" :components ("index" "posts" "assets"))))
+        ("all" :components ("index" "assets"))))
 
 (defvar publish-feed-url-format
   ;"https://gitlab.com/ryuslash/ryuslash.org/-/commits/master/%s?feed_token=Rf8otgpS8YEiYakJN4NR&format=atom"