Make documentation consistent when mentioning request types

* jupyter-client.el (jupyter-inspect)
(jupyter-code-context, jupyter-kernel-info): Do it.

* jupyter-mime.el (jupyter-display-ids)
(jupyter-update-display): Do it.

* jupyter-repl.el (jupyter-repl-allow-RET-when-busy): Do it.

Author: nnicandro

jupyter-client.el

@@ -1196,7 +1196,7 @@ called interactively."
 
 (cl-defgeneric jupyter-inspect (code &optional pos buffer detail)
   "Inspect CODE.
-Send an `:inspect-request' with the `jupyter-current-client' and
+Send an inspect_request with the `jupyter-current-client' and
 display the results in a BUFFER.
 
 CODE is the code to inspect and POS is your position in the CODE.
@@ -1274,9 +1274,9 @@ DETAIL is the detail level to use for the request and defaults to
 CODE is the required context for TYPE (either `inspect' or
 `completion') and POS is the relative position of `point' within
 CODE.  Depending on the current context such as the current
-`major-mode', CODE and POS will be used for `:complete-request's
-originating from `jupyter-completion-at-point' and
-`:inspect-request's from `jupyter-inspect-at-point'.
+`major-mode', CODE and POS will be used for a complete_request
+originating from `jupyter-completion-at-point' and an
+inspect_request from `jupyter-inspect-at-point'.
 
 The default methods return the `jupyter-line-or-region-context'.")
 
@@ -1700,26 +1700,28 @@ function `jupyter-kernel-language-mode-properties'.")
 (defun jupyter-kernel-info (client)
   "Return the kernel info plist of CLIENT.
 Return CLIENT's kernel-info slot if non-nil.  Otherwise send a
-`:kernel-info-request' to CLIENT's kernel, set CLIENT's
+kernel_info_request to CLIENT's kernel, set CLIENT's
 kernel-info slot to the plist retrieved from the kernel, and
 return it.
 
 If the kernel CLIENT is connected to does not respond to a
-`:kernel-info-request', raise an error.
+kernel_info_request, raise an error.
 
-Note, the value of the :name key in the :language_info property
-list is a symbol as opposed to a string for the purposes of
-method dispatching.  Also all instances of \" \" in the language
-name are changed to \"-\" and all uppercase characters lowered."
+Note, the value of the `:name' key in the `:language_info'
+property list is a symbol as opposed to a string for the purposes
+of method dispatching.  Also all instances of \" \" in the
+language name are changed to \"-\" and all uppercase characters
+lowered."
   (cl-check-type client jupyter-kernel-client)
   ;; TODO: This needs to be reset when a client is disconnected.  This
   ;; should be part of the connection process.
   (or (oref client kernel-info)
       (progn
         (message "Requesting kernel info...")
         ;; Don't generate this request in an unknown buffer.  This is
-        ;; mainly so that the Org client's generate-request doesn't
-        ;; confuse it for an execute_request in the Org buffer.
+        ;; mainly so that the Org client's `jupyter-generate-request'
+        ;; doesn't confuse it for an execute_request in the Org
+        ;; buffer.
         (jupyter-with-client-buffer client
           (jupyter-run-with-client client
             (jupyter-mlet* ((msg (jupyter-reply

jupyter-mime.el

@@ -61,12 +61,11 @@ Wider images are resized.  Special value 0 means no limit."
 (defvar-local jupyter-display-ids nil
   "A hash table of display IDs.
 Display IDs are implemented by setting the text property,
-`jupyter-display', to the display ID requested by a
-`:display-data' message.  When a display is updated from an
-`:update-display-data' message, the display ID from the initial
-`:display-data' message is retrieved from this table and used to
-find the display in the REPL buffer.  See
-`jupyter-update-display'.")
+`jupyter-display', to the display ID requested by a display_data
+message.  When a display is updated from an update_display_data
+message, the display ID from the initial display_data message is
+retrieved from this table and used to find the display in the
+REPL buffer.  See `jupyter-update-display'.")
 
 ;;; Macros
 
@@ -627,7 +626,7 @@ property."
 
 (cl-defmethod jupyter-update-display ((display-id string) data &optional metadata)
   "Update the display with DISPLAY-ID using DATA.
-DATA and METADATA have the same meaning as in a `:display-data'
+DATA and METADATA have the same meaning as in a display_data
 message."
   (let ((id (and jupyter-display-ids
                  (gethash display-id jupyter-display-ids))))

jupyter-repl.el

@@ -135,8 +135,8 @@ position."
   "Allow RET to insert a newline when the kernel is busy.
 Normally when the kernel is busy, pressing RET at an input cell
 is disallowed.  This is because, when the kernel is busy, it does
-not respond to an `:is-complete-request' message and that message
-is used to avoid sending incomplete code to the kernel.
+not respond to an is_complete_request message and that message is
+used to avoid sending incomplete code to the kernel.
 
 If this variable is non-nil, RET is allowed to insert a newline.
 In this case, pressing RET on an empty line, i.e.  RET RET, will