package-lists/guix-emacs-manifest: Add keycast, sly-stepper.

.package-lists/guix-emacs-manifest.scm

@@ -28,7 +28,7 @@
     "emacs-evil"
     "emacs-evil-collection"
     "emacs-evil-commentary"
-    "emacs-evil-magit"
+    "emacs-evil-magit"                  ; TODO: Remove once merged in evil-collection.
     "emacs-evil-multiedit"
     "emacs-evil-org"
     "emacs-expand-region"
@@ -67,6 +67,7 @@
     "emacs-hl-todo"
     "emacs-iedit"
     "emacs-image+"
+    "emacs-keycast"
     ;; "emacs-ledger-mode" ; Never used it.
     "emacs-lispy"
     "emacs-lispyville"
@@ -98,6 +99,7 @@
     "emacs-sly-macrostep"
     "emacs-sly-named-readtables"
     ;; "emacs-sly-package-inferred" ; TODO: This package triggers an infinite recursion.
+    "emacs-sly-stepper"
     "emacs-strace-mode"
     "emacs-suggest"
     ;; "emacs-sx" ; Unused in a while.