Added version release notes

CITATION.cff

@@ -2,9 +2,9 @@ cff-version: 1.2.0
 message: Please use the following metadata when citing this project in your work.
 title: macOS
 abstract: Provides a shell based framework for automating the setup of a macOS machine.
-version: 15.0.2
+version: 15.0.3
 license: Hippocratic-2.1
-date-released: 2022-03-03
+date-released: 2022-03-16
 authors:
   - family-names: Kuhlmann
     given-names: Brooke

README.adoc

@@ -56,7 +56,7 @@ To install, run:
 ----
 git clone https://github.com/bkuhlmann/mac_os.git
 cd mac_os
-git checkout 15.0.2
+git checkout 15.0.3
 ----
 
 == Usage

VERSIONS.adoc

@@ -1,5 +1,9 @@
 = Versions
 
+== 15.0.3 (2022-03-16)
+
+* Fixed Homebrew install to initially default to ZSH - Brooke Kuhlmann
+
 == 15.0.2 (2022-03-03)
 
 * Fixed Hippocratic License to be 2.1.0 version - Brooke Kuhlmann