fix(tests): clarify fixture comment — not all projects hold a root .git

Author: codepuncher

tests/project_open.bats

@@ -13,10 +13,10 @@ setup() {
 	XDG_CACHE_HOME="$(temp_make)"
 	export XDG_CACHE_HOME
 
-	# Projects sit at <root>/<category>/<project> and always hold a .git.
-	# wordpress projects carry a .git alongside their bedrock/site app dir;
-	# clinimed-style projects have .git only inside bedrock/trellis subdirs;
-	# vcpkg is a nested submodule (deeper) that must be excluded from scans.
+	# Projects sit at <root>/<category>/<project>. Most hold a .git directly
+	# at that depth; clinimed-style projects hold .git only inside subdirs.
+	# wordpress projects also carry a bedrock/site app dir alongside their .git;
+	# vcpkg is a nested submodule (depth 5+) that must be excluded from scans.
 	mkdir -p \
 		"${ROOT}/mods/HoldFast/.git" \
 		"${ROOT}/mods/HoldFast/lib" \