We no longer have two doc systems, move sphinx_doc_src back to doc_src

doc_src/cmds/funcsave.rst

@@ -0,0 +1,19 @@
+.. _cmd-funcsave:
+
+funcsave - save the definition of a function to the user's autoload directory
+=============================================================================
+
+Synopsis
+--------
+
+::
+
+    funcsave FUNCTION_NAME
+
+
+Description
+-----------
+
+``funcsave`` saves the current definition of a function to a file in the fish configuration directory. This function will be automatically loaded by current and future fish sessions. This can be useful if you have interactively created a new function and wish to save it for later use.
+
+Note that because fish loads functions on-demand, saved functions will not function as :ref:`event handlers <event>` until they are run or sourced otherwise. To activate an event handler for every new shell, add the function to your :ref:`shell initialization file <initialization>` instead of using ``funcsave``.