Clarify docs for lsp_cfg and lsp_attach (#61)

README.md

@@ -397,12 +397,14 @@ require('go').setup({
   comment_placeholder = '' ,  -- comment_placeholder your cool placeholder e.g. ﳑ       
   icons = {breakpoint = '🧘', currentpos = '🏃'},
   verbose = false,  -- output loginf in messages
-  lsp_cfg = false, -- true: apply go.nvim non-default gopls setup, if it is a list, will merge with gopls setup e.g.
-                   -- lsp_cfg = {settings={gopls={matcher='CaseInsensitive', ['local'] = 'your_local_module_path', gofumpt = true }}}
+  lsp_cfg = false, -- true: use non-default gopls setup specified in go/lsp.lua
+                   -- false: do nothing
+                   -- if lsp_cfg is a table, merge table with with non-default gopls setup in go/lsp.lua, e.g.
+                   --   lsp_cfg = {settings={gopls={matcher='CaseInsensitive', ['local'] = 'your_local_module_path', gofumpt = true }}}
   lsp_gofumpt = false, -- true: set default gofmt in gopls format to gofumpt
-  lsp_on_attach = true, -- if a on_attach function provided:  attach on_attach function to gopls
-                       -- true: will use go.nvim on_attach if true
-                       -- nil/false do nothing
+  lsp_on_attach = true, -- true: use on_attach function defined in go/lsp.lua
+                        -- false: do nothing
+			-- if lsp_on_attach is a function: use this function as on_attach function for gopls
   lsp_codelens = true, -- set to false to disable codelens, true by default
   gopls_remote_auto = true, -- add -remote=auto to gopls
   gopls_cmd = nil, -- if you need to specify gopls path and cmd, e.g {"/home/user/lsp/gopls", "-logfile","/var/log/gopls.log" }