Add docs to the last export of cli-common

Signed-off-by: Fredrik Adelöw <freben@gmail.com>

.changeset/great-tomatoes-cheat.md

@@ -0,0 +1,5 @@
+---
+'@backstage/cli-common': patch
+---
+
+Add docs to the last export of cli-common

packages/cli-common/api-report.md

@@ -21,6 +21,6 @@ export type Paths = {
   resolveTargetRoot: ResolveFunc;
 };
 
-// @public (undocumented)
+// @public
 export type ResolveFunc = (...paths: string[]) => string;
 ```

packages/cli-common/src/paths.ts

@@ -17,7 +17,12 @@
 import fs from 'fs';
 import { dirname, resolve as resolvePath } from 'path';
 
-/** @public */
+/**
+ * A function that takes a set of path fragments and resolves them into a
+ * single complete path, relative to some root.
+ *
+ * @public
+ */
 export type ResolveFunc = (...paths: string[]) => string;
 
 /**