Updated README

Added exit code info.
Fixed formatting.

README.md

@@ -3,13 +3,13 @@ The superUser Project is a simple and lightweight way to start any process with
 
 # How it works
 This program does the following things: (In order)
-* Acquires the *SeDebugPrivilege* for its own token.
-The purpose of the *SeDebugPrivilege* is to allow the process to be able to acquire a *PROCESS_ALL_ACCESS* handle to any process regardless of its security descriptors.
-* Opens a Service Manager handle to query the status of the *TrustedInstaller* service.
-* Starts the *TrustedInstaller* service and acquires its handle with *PROCESS_ALL_ACCESS*.
-* Creates the required *STARTUPINFOEX* structure containing the data on how the created process behaves.
+* Acquires the `SeDebugPrivilege` for its own token.
+The purpose of the `SeDebugPrivilege` is to allow the process to be able to acquire a `PROCESS_ALL_ACCESS` handle to any process regardless of its security descriptors.
+* Opens a Service Manager handle to query the status of the `TrustedInstaller` service.
+* Starts the `TrustedInstaller` service and acquires its handle with `PROCESS_ALL_ACCESS`.
+* Creates the required `STARTUPINFOEX` structure containing the data on how the created process behaves.
 * An attribute list for the process is created.
-* The attribute list is filled to set the new process' parent to the *TrustedInstaller* service using the *PROC_THREAD_ATTRIBUTE_PARENT_PROCESS* attribute.
+* The attribute list is filled to set the new process' parent to the `TrustedInstaller` service using the `PROC_THREAD_ATTRIBUTE_PARENT_PROCESS` attribute.
 * Finally the process is created, its PID is printed and the main thread is resumed. (It was created suspended for possible future changes/fixes)
 
 This method is (almost certainly) in no way inferior to the method which captures the TI token and creates a process with it. The acquired privileges are identical and, from what I've tested, there are no differences between them.
@@ -19,13 +19,20 @@ Please contact me if I'm wrong.
 # Usage
 There are two ways to run the program:
 
-### From the File Explorer
+## From the File Explorer
 Simply double click the executable, grant it administrator rights and a command prompt with TI privileges will start soon after.
 In case of any problems use the second method of running the program to see the "debug" output.
 
-### From the Command Prompt
+## From the Command Prompt
 Simply run the command prompt (preferably elevated to see the program output) in the folder containing the executable and type:
 
-#### superUser "\<process name\>"
+#### ```superUser "<process name>"```
 
 It is important that you enclose the process name in brackets if it contains spaces, otherwise a command prompt will start.
+## Exit Codes
+| Exit Code  | Decimal  |  Meaning                                          |
+|------------|----------|---------------------------------------------------|
+| `0xDEAD`   | 57005    | Failed acquiring SeDebugPrivilege.<sup>(1)</sup>  |
+| `0xDEDDED` | 14605805 | Process creation failed with printed error code.  |
+
+<sup>(1)</sup> - Make sure you have administrative privileges and that your group has SeDebugPrivilege enabled.