[#2663] Map cider-clojuredocs to C-c C-d C-c

I think it's a bit easier to type/remember than C-c C-d C-r.

Author: bbatsov

cider-doc.el

@@ -70,8 +70,8 @@
     (define-key cider-doc-map (kbd "C-e") #'cider-apropos-documentation-select)
     (define-key cider-doc-map (kbd "d") #'cider-doc)
     (define-key cider-doc-map (kbd "C-d") #'cider-doc)
-    (define-key cider-doc-map (kbd "r") #'cider-clojuredocs)
-    (define-key cider-doc-map (kbd "C-r") #'cider-clojuredocs)
+    (define-key cider-doc-map (kbd "c") #'cider-clojuredocs)
+    (define-key cider-doc-map (kbd "C-c") #'cider-clojuredocs)
     (define-key cider-doc-map (kbd "w") #'cider-clojuredocs-web)
     (define-key cider-doc-map (kbd "C-w") #'cider-clojuredocs-web)
     (define-key cider-doc-map (kbd "j") #'cider-javadoc)

doc/modules/ROOT/pages/repl/keybindings.adoc

@@ -56,7 +56,7 @@ kbd:[C-c C-d C-j]
 | Display JavaDoc (in your default browser) for the symbol at point.  If invoked with a prefix argument, or no symbol is found at point, prompt for a symbol.
 
 | kbd:[C-c C-d r] +
-kbd:[C-c C-d C-r]
+kbd:[C-c C-d C-c]
 | Lookup symbol in ClojureDocs.
 
 | kbd:[C-c C-d a] +

doc/modules/ROOT/pages/usage/cider_mode.adoc

@@ -158,8 +158,8 @@ kbd:[C-c C-d C-j]
 | Display JavaDoc (in your default browser) for the symbol at point.  If invoked with a prefix argument, or no symbol is found at point, prompt for a symbol.
 
 | `cider-clojuredocs`
-| kbd:[C-c C-d r] +
-kbd:[C-c C-d C-r]
+| kbd:[C-c C-d c] +
+kbd:[C-c C-d C-c]
 | Lookup symbol in ClojureDocs.
 
 | `cider-clojuredocs-web`