fix(docs): fix copy-paste error in docs (#354)

Author: filiptubic

website/docs/r/secure_rule_syscall.md

@@ -33,7 +33,7 @@ resource "sysdig_secure_rule_syscall" "foo" {
 ### Matching
 
 * `matching` - (Optional) Defines if the syscall name matches or not with the provided list. Default is true.
-* `processes` - (Required) List of syscalls to match.
+* `syscalls` - (Required) List of syscalls to match.
 
 ## Attributes Reference
 
@@ -47,4 +47,4 @@ Secure syscall runtime rules can be imported using the ID, e.g.
 
 ```
 $ terraform import sysdig_secure_rule_syscall.example 12345
-```
+```