Update Terraform documentation

Author: mysticaltech

docs/terraform.md

@@ -8,6 +8,7 @@
 | <a name="requirement_github"></a> [github](#requirement\_github) | >= 6.4.0 |
 | <a name="requirement_hcloud"></a> [hcloud](#requirement\_hcloud) | >= 1.51.0 |
 | <a name="requirement_local"></a> [local](#requirement\_local) | >= 2.5.2 |
+| <a name="requirement_semvers"></a> [semvers](#requirement\_semvers) | >= 0.7.1 |
 | <a name="requirement_ssh"></a> [ssh](#requirement\_ssh) | 2.7.0 |
 
 ### Providers