Docs: Bump version

Changelog.md

 OpenCore Changelog
 ==================
 
+#### v0.5.1
+
 #### v0.5.0
 - Added builtin firmware versions for new models 2019
 - Fixed LogoutHook leaving random directories in `$HOME`

Docs/Configuration.tex

@@ -80,7 +80,7 @@
 
        \vspace{0.2in}
 
-       Reference Manual (0.5.0)
+       Reference Manual (0.5.1)
 
        \vspace{0.2in}
 
@@ -1718,6 +1718,8 @@ behaviour that does not go to any other sections
   Set to empty string not to change console mode. Set to \texttt{Max}
   to try to use largest available console mode.
 
+  \emph{Note}: This field is best to be left empty on most firmwares.
+
 \item
   \texttt{ConsoleBehaviourOs}\\
   \textbf{Type}: \texttt{plist\ string}\\

Include/OpenCore.h

@@ -28,7 +28,7 @@
   OpenCore version reported to log and NVRAM.
   OPEN_CORE_VERSION must follow X.Y.Z format, where X.Y.Z are single digits.
 **/
-#define OPEN_CORE_VERSION          "0.5.0"
+#define OPEN_CORE_VERSION          "0.5.1"
 
 /**
   OpenCore build type reported to log and NVRAM.