add changelog

Author: hellertang

.changelog/3353.txt

@@ -0,0 +1,3 @@
+```release-note:enhancement
+resource/tencentcloud_key_pair: add computed attr `private_key` and `create_time`
+```

tencentcloud/services/cvm/resource_tc_key_pair.md

@@ -4,7 +4,15 @@ Example Usage
 
 ```hcl
 resource "tencentcloud_key_pair" "foo" {
-	key_name   = "terraform_test"
+  key_name = "terraform_test"
+}
+
+output "private_key" {
+  value = tencentcloud_key_pair.foo.private_key
+}
+
+output "create_time" {
+  value = tencentcloud_key_pair.foo.created_time
 }
 
 resource "tencentcloud_key_pair" "foo1" {

website/docs/r/key_pair.html.markdown

@@ -18,6 +18,14 @@ resource "tencentcloud_key_pair" "foo" {
   key_name = "terraform_test"
 }
 
+output "private_key" {
+  value = tencentcloud_key_pair.foo.private_key
+}
+
+output "create_time" {
+  value = tencentcloud_key_pair.foo.created_time
+}
+
 resource "tencentcloud_key_pair" "foo1" {
   key_name   = "terraform_test"
   public_key = "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAAAgQDjd8fTnp7Dcuj4mLaQxf9Zs/ORgUL9fQxRCNKkPgP1paTy1I513maMX126i36Lxxl3+FUB52oVbo/FgwlIfX8hyCnv8MCxqnuSDozf1CD0/wRYHcTWAtgHQHBPCC2nJtod6cVC3kB18KeV4U7zsxmwFeBIxojMOOmcOBuh7+trRw=="