minor typo fixes (#143)

Author: dreamos82

02_Architecture/04_GDT.md

@@ -150,7 +150,7 @@ These are further distinguished with the `type` field, as outlined below.
 | Start (in bits) | Length (in bits) | Description                                           |
 |:----------------|:-----------------|-------------------------------------------------------|
 | 0               | 16               | Limit bits 15:0                                       |
-| 15              | 16               | Base address bits 15:0                                |
+| 16              | 16               | Base address bits 15:0                                |
 | 32              | 8                | Base address bits 23:16                               |
 | 40              | 4                | Selector type                                         |
 | 44              | 1                | Is system-type selector                               |

99_Appendices/J_Updates.md

@@ -70,11 +70,11 @@ Sixth Book Release
 
 ### Revision 6
 
-Release date: Jan 2026
+Release date: Feb 2026
 Seventh Book Release
 
 * Typo Fixes
 * Fix errors in C code examples
 * New paragraph in Appendix F about literals and shitfting in C
 * Update the kheap chapter, to use the term "coalescing" instead of merging
-* New section: Resource Management) (thanks to @Maxtyson123
+* New section: Resource Management (thanks to @Maxtyson123)