Fix #49 by making example work with tags

Author: drewcassidy

CHANGELOG.md

@@ -2,6 +2,13 @@
 
 All notable changes to this project will be documented in this file
 
+## Unreleased
+
+### Docs
+
+- Fixed git submodule example to work even for tagged releases (#49)
+
+
 ## 0.0.4 - 2025-06-15
 
 ### Library

docs/msbuild/getting-started.md

@@ -41,7 +41,9 @@ First, run the following command in your git project root:
 
 ````{jinja}
 ```console
-git submodule add{% if git_ref %} --branch {{git_ref}} {% endif %}https://github.com/KSPModdingLibs/KSPBuildTools.git
+git submodule add https://github.com/KSPModdingLibs/KSPBuildTools.git
+{% if git_ref %}git -C KSPBuildTools/ fetch{% endif %}
+{% if git_ref %}git -C KSPBuildTools/ checkout {{git_ref}}{% endif %}
 ```
 ````