Fix grammar issues

Author: wchen-r7

documentation/modules/exploit/multi/misc/openoffice_document_macro.md

@@ -3,7 +3,7 @@
 This module generates an Apache OpenOffice Text Document with a malicious macro in it. It also
 works against LibreOffice.
 
-For exploit successfully, the targeted user must adjust the security level in Macro Security to
+To exploit successfully, the targeted user must adjust the security level in Macro Security to
 either Medium or Low. If set to Medium, a prompt is presented to the user to enable or disable the
 macro. If set to Low, the macro can automatically run without any warning.
 
@@ -14,8 +14,8 @@ macro. If set to Low, the macro can automatically run without any warning.
 
 ## Verification Steps
 
-To use this exploit, you must know the platform of the targeted user. The module supports either
-Windows, Linux, and OSX. If the target is using Windows, then the exploit will generate the macro
+To use this exploit, you must know the platform of the targeted user. The module supports Windows,
+Linux, and OSX. If the target is using Windows, then the exploit will generate the macro
 with malicious Powershell code inside. For other supported platforms, the exploit will generate
 Python code.