Change cmp#ready to CmpReady and document autocmds better (#669)

doc/cmp.txt

@@ -325,8 +325,11 @@ Highlight                                                        *cmp-highlight*
 ==============================================================================
 Autocmd                                                            *cmp-autocmd*
 
-*cmp#ready*
-  Invoke after sourcing the `plugin/cmp.lua`
+You can create custom autocommands for certain nvim-cmp events by defining
+autocommands for the User event with the following patterns.
+
+*CmpReady*
+  Invoked when nvim-cmp gets sourced from `plugin/cmp.lua`.
 
 
 

plugin/cmp.lua

@@ -126,7 +126,7 @@ end
 
 vim.cmd [[command! CmpStatus lua require('cmp').status()]]
 
-vim.cmd [[doautocmd <nomodeline> User cmp#ready]]
+vim.cmd [[doautocmd <nomodeline> User CmpReady]]
 
 if vim.on_key then
   vim.on_key(function(keys)