Fix links in AboutBox documentation

There were two kinds of fixes:

1. Fix links broken by change of directory structure.

2. Change link to releases page from SourceForge to GitHub.

Author: delphidabbler

AboutBox/3.6/API.md

@@ -1,4 +1,4 @@
-# [About Box Component](../AboutBox.md) Programmers' Guide
+# [About Box Component](../index.md) Programmers' Guide
 
 ## Introduction
 

AboutBox/3.6/API/TPJAboutBoxDlg-VersionInfo.md

@@ -14,7 +14,7 @@ property VersionInfo: TPJVersionInfo;
 
 This property allows information from a string information block in a program file's _VERSIONINFO_ resource to be displayed in the dialog box.
 
-To enable this to happen a [_TPJVersionInfo_](../../VerInfo/API/TPJVersionInfo.md) component must be placed on the form and this property must reference it. The _TPJVersionInfo_ component's [_FileName_](../../VerInfo/API/TPJVersionInfo-FileName.md) property must be set to the name of the executable file from which version information is to be extracted, or set to '' to get the version information of the parent executable file.
+To enable this to happen a [_TPJVersionInfo_](../../../VerInfo/3/API/TPJVersionInfo.md) component must be placed on the form and this property must reference it. The _TPJVersionInfo_ component's [_FileName_](../../../VerInfo/3/API/TPJVersionInfo-FileName.md) property must be set to the name of the executable file from which version information is to be extracted, or set to '' to get the version information of the parent executable file.
 
 The following table shows which version information string values are used, along with the properties whose values they replace:
 

AboutBox/3.6/API/TPJAboutBoxDlg.md

@@ -6,7 +6,7 @@
 
 This non-visual component encapsulates an About Box in a non-visual component. It is displayed by calling its [_Execute_](./TPJAboutBoxDlg-Execute.md) method. It has string properties to display five different pieces of information in the about box. They are: [_Copyright_](./TPJAboutBoxDlg-Copyright.md), [_Notes_](./TPJAboutBoxDlg-Notes.md), [_ProgramName_](./TPJAboutBoxDlg-ProgramName.md), [_Title_](./TPJAboutBoxDlg-Title.md) and [_Version_](./TPJAboutBoxDlg-Version.md).
 
-Alternatively, the about box can display information from a _VERSIONINFO_ resource included in a program file. This is achieved by setting the [_VersionInfo_](./TPJAboutBoxDlg-VersionInfo.md) property to reference a [_TPJVersionInfo_](../../VerInfo/API/TPJVersionInfo.md) component which extracts the required version information from an executable file.
+Alternatively, the about box can display information from a _VERSIONINFO_ resource included in a program file. This is achieved by setting the [_VersionInfo_](./TPJAboutBoxDlg-VersionInfo.md) property to reference a [_TPJVersionInfo_](../../../VerInfo/3/API/TPJVersionInfo.md) component which extracts the required version information from an executable file.
 
 The application's icon is displayed in the dialog box. This is the icon specified by the _Icon_ property of the _TApplication_ object. If no icon has been specified for the application then default Delphi icon is used.
 
@@ -42,7 +42,7 @@ The [_HelpContext_](./TPJAboutBoxDlg-HelpContext.md) property allows Windows Hel
 | [_UseOSStdFonts_](./TPJAboutBoxDlg-UseOSStdFonts.md) | Specifies whether the dialog box should use the system's default font. |
 | [_UseOwnerAsParent_](./TPJAboutBoxDlg-UseOwnerAsParent.md) | Determines if the dialog box should to be forced to be a child window of any owning control. |
 | [_Version_](./TPJAboutBoxDlg-Version.md) | The version number information to be displayed in the dialog box. |
-| [_VersionInfo_](./TPJAboutBoxDlg-VersionInfo.md) | Reference to any [_TPJVersionInfo_](../../VerInfo/API/TPJVersionInfo.md) component that provides the text displayed in the about box. |
+| [_VersionInfo_](./TPJAboutBoxDlg-VersionInfo.md) | Reference to any [_TPJVersionInfo_](../../../VerInfo/3/API/TPJVersionInfo.md) component that provides the text displayed in the about box. |
 
 ## Events
 

AboutBox/3.6/Overview.md

@@ -1,4 +1,4 @@
-# [About Box Component](../AboutBox.md) Overview 
+# [About Box Component](../index.md) Overview 
 
 ## Description
 
@@ -18,7 +18,7 @@ The dialogue's position can be specified relative to the screen, desktop or pare
 
 ### Required component
 
-In order to compile, _TPJAboutBoxDlg_ requires that a DelphiDabbler [_Version Information Component_](../VerInfo/Overview.md) is installed.
+In order to compile, _TPJAboutBoxDlg_ requires that a DelphiDabbler [_Version Information Component_](../../VerInfo/index.md) is installed.
 
 ### Demo program
 

AboutBox/index.md

@@ -21,12 +21,12 @@ This documentation applies to About Box Component ~>3.6.
 
 ## Contents
 
-* [Overview](./AboutBox/Overview.md)
-* [Programmer's Guide](./AboutBox/API.md)
+* [Overview](./3.6/Overview.md)
+* [Programmer's Guide](./3.6/API.md)
 
 ## Links
 
 * Back to [Documentation Home Page](../index.md)
 * [About Box Component Web Page](https://delphidabbler.com/software/aboutbox)
-* [Downloads](https://sourceforge.net/projects/ddablib/files/aboutbox/)
+* [Releases](https://github.com/ddablib/aboutbox/releases)
 * [Source Code](https://github.com/ddablib/aboutbox)