Prep changelog + books for post alpha.1 release

Author: hollasch

CHANGELOG.md

@@ -1,7 +1,7 @@
 Change Log -- Ray Tracing in One Weekend
 ====================================================================================================
 
-# v4.0.0-alpha.1 (2023-08-06)
+# v4.0.0-alpha.2 (2023-08-11 ...)
 
 It's been quite a while since our last release of v3.2.3 at the end of 2020. For this cycle, we've
 tackled a load of significant backlog items, including rewrites of much of our underlying code. As

books/RayTracingInOneWeekend.html

@@ -7,7 +7,7 @@
                                    **Ray Tracing in One Weekend**
                    [Peter Shirley][], [Trevor David Black][], [Steve Hollasch][]
                                                 <br>
-                                     Version 4.0.0-alpha.1, 2023-08-06
+                                     Version 4.0.0-alpha.2, 2023-XX-XX
                                                 <br>
                       Copyright 2018-2023 Peter Shirley. All rights reserved.
 
@@ -4165,8 +4165,8 @@
   - **Title (series)**: “Ray Tracing in One Weekend Series”
   - **Title (book)**: “Ray Tracing in One Weekend”
   - **Author**: Peter Shirley, Trevor David Black, Steve Hollasch
-  - **Version/Edition**: v4.0.0-alpha.1
-  - **Date**: 2023-08-06
+  - **Version/Edition**: v4.0.0-alpha.2
+  - **Date**: 2023-XX-XX
   - **URL (series)**: https://raytracing.github.io/
   - **URL (book)**: https://raytracing.github.io/books/RayTracingInOneWeekend.html
 
@@ -4193,7 +4193,7 @@
        title = {Ray Tracing in One Weekend},
        author = {Peter Shirley, Trevor David Black, Steve Hollasch},
        year = {2023},
-       month = {August},
+       month = {XXX},
        note = {\small \texttt{https://raytracing.github.io/books/RayTracingInOneWeekend.html}},
        url = {https://raytracing.github.io/books/RayTracingInOneWeekend.html}
     }
@@ -4209,7 +4209,7 @@
        title = {Ray Tracing in One Weekend},
        author = {Peter Shirley, Trevor David Black, Steve Hollasch},
        year = {2023},
-       month = {August},
+       month = {XXX},
        url = {https://raytracing.github.io/books/RayTracingInOneWeekend.html}
     }
     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

books/RayTracingTheNextWeek.html

@@ -7,7 +7,7 @@
                                    **Ray Tracing: The Next Week**
                    [Peter Shirley][], [Trevor David Black][], [Steve Hollasch][]
                                                 <br>
-                                     Version 4.0.0-alpha.1, 2023-08-06
+                                     Version 4.0.0-alpha.2, 2023-XX-XX
                                                 <br>
                       Copyright 2018-2023 Peter Shirley. All rights reserved.
 
@@ -4005,8 +4005,8 @@
   - **Title (series)**: “Ray Tracing in One Weekend Series”
   - **Title (book)**: “Ray Tracing: The Next Week”
   - **Author**: Peter Shirley, Trevor David Black, Steve Hollasch
-  - **Version/Edition**: v4.0.0-alpha.1
-  - **Date**: 2023-08-06
+  - **Version/Edition**: v4.0.0-alpha.2
+  - **Date**: 2023-XX-XX
   - **URL (series)**: https://raytracing.github.io/
   - **URL (book)**: https://raytracing.github.io/books/RayTracingTheNextWeek.html
 
@@ -4033,7 +4033,7 @@
        title = {Ray Tracing: The Next Week},
        author = {Peter Shirley, Trevor David Black, Steve Hollasch},
        year = {2023},
-       month = {August},
+       month = {XXX},
        note = {\small \texttt{https://raytracing.github.io/books/RayTracingTheNextWeek.html}},
        url = {https://raytracing.github.io/books/RayTracingTheNextWeek.html}
     }
@@ -4049,7 +4049,7 @@
        title = {Ray Tracing: The Next Week},
        author = {Peter Shirley, Trevor David Black, Steve Hollasch},
        year = {2023},
-       month = {August},
+       month = {XXX},
        url = {https://raytracing.github.io/books/RayTracingTheNextWeek.html}
     }
     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

books/RayTracingTheRestOfYourLife.html

@@ -7,7 +7,7 @@
                                **Ray Tracing: The Rest of Your Life**
                    [Peter Shirley][], [Trevor David Black][], [Steve Hollasch][]
                                                 <br>
-                                     Version 4.0.0-alpha.1, 2023-08-06
+                                     Version 4.0.0-alpha.2, 2023-XX-XX
                                                 <br>
                       Copyright 2018-2023 Peter Shirley. All rights reserved.
 
@@ -3763,8 +3763,8 @@
   - **Title (series)**: “Ray Tracing in One Weekend Series”
   - **Title (book)**: “Ray Tracing: The Rest of Your Life”
   - **Author**: Peter Shirley, Trevor David Black, Steve Hollasch
-  - **Version/Edition**: v4.0.0-alpha.1
-  - **Date**: 2023-08-06
+  - **Version/Edition**: v4.0.0-alpha.2
+  - **Date**: 2023-XX-XX
   - **URL (series)**: https://raytracing.github.io/
   - **URL (book)**: https://raytracing.github.io/books/RayTracingTheRestOfYourLife.html
 
@@ -3791,7 +3791,7 @@
        title = {Ray Tracing: The Rest of Your Life},
        author = {Peter Shirley, Trevor David Black, Steve Hollasch},
        year = {2023},
-       month = {August},
+       month = {XXX},
        note = {\small \texttt{https://raytracing.github.io/books/RayTracingTheRestOfYourLife.html}},
        url = {https://raytracing.github.io/books/RayTracingTheRestOfYourLife.html}
     }
@@ -3807,7 +3807,7 @@
        title = {Ray Tracing: The Rest of Your Life},
        author = {Peter Shirley, Trevor David Black, Steve Hollasch},
        year = {2023},
-       month = {August},
+       month = {XXX},
        url = {https://raytracing.github.io/books/RayTracingTheRestOfYourLife.html}
     }
     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~