chore: add link to g:go_exclude_binaries to the :GoUpdateBinaries and :GoInstallBinaries entries

Signed-off-by: Elias Van Ootegem <[email protected]>

Author: EVODelavega

doc/vim-go.txt

@@ -512,6 +512,7 @@ CTRL-t
     syntax to the binary name. e.g. `:GoInstallBinaries [email protected]`.
 
     Set |'g:go_get_update'| to disable updating dependencies.
+    Set |'g:go_exclude_binaries'| to disable installing specific binaries.
 
                                                            *:GoUpdateBinaries*
 :GoUpdateBinaries [binaries]
@@ -525,6 +526,7 @@ CTRL-t
     syntax to the binary name. e.g. `:GoUpdateBinaries [email protected]`.
 
     Set |'g:go_get_update'| to disable updating dependencies.
+    Set |'g:go_exclude_binaries'| to disable updating specific binaries.
 
                                                                *:GoImplements*
 :GoImplements