Add deps.edn to list of project markers

Author: bbatsov

CHANGELOG.md

@@ -10,6 +10,7 @@
 * New interactive command `clojure-cycle-not`.
 * New defcustom `clojure-comment-regexp` for font-locking `#_` or `#_` AND `(comment)` sexps.
 * [#459](https://github.com/clojure-emacs/clojure-mode/issues/459): Add font-locking for new built-ins added in Clojure 1.9.
+* Consider `deps.edn` a project root.
 
 ### Changes
 

clojure-mode.el

@@ -183,7 +183,7 @@ For example, \[ is allowed in :db/id[:db.part/user]."
           (and (listp value)
                (cl-every 'characterp value))))
 
-(defcustom clojure-build-tool-files '("project.clj" "build.boot" "build.gradle")
+(defcustom clojure-build-tool-files '("project.clj" "build.boot" "build.gradle" "deps.edn")
   "A list of files, which identify a Clojure project's root.
 Out-of-the box `clojure-mode' understands lein, boot and gradle."
   :type '(repeat string)