[ts] Fix URLs in package README.md files.

spine-ts/spine-canvas/README.md

@@ -1,3 +1,3 @@
 # spine-ts Canvas 
 
-Please see https://github.com/EsotericSoftware/spine-runtimes/blob/4.0/spine-ts/README.md for more information.
+Please see the top-level [README.md](../README.md) for more information.

spine-ts/spine-core/README.md

@@ -1,3 +1,3 @@
 # spine-ts core 
 
-Please see https://github.com/EsotericSoftware/spine-runtimes/blob/4.0/spine-ts/README.md for more information.
+Please see the top-level [README.md](../README.md) for more information.

spine-ts/spine-phaser/README.md

@@ -1,3 +1,3 @@
 # spine-ts Phaser
 
-Please see https://github.com/EsotericSoftware/spine-runtimes/blob/4.0/spine-ts/README.md for more information.
+Please see the top-level [README.md](../README.md) for more information.

spine-ts/spine-player/README.md

@@ -1,3 +1,3 @@
 # spine-ts Player 
 
-Please see https://github.com/EsotericSoftware/spine-runtimes/blob/4.0/spine-ts/README.md for more information.
+Please see the top-level [README.md](../README.md) for more information.

spine-ts/spine-threejs/README.md

@@ -1,3 +1,3 @@
 # spine-ts THREE.JS
 
-Please see https://github.com/EsotericSoftware/spine-runtimes/blob/4.0/spine-ts/README.md for more information.
+Please see the top-level [README.md](../README.md) for more information.

spine-ts/spine-webgl/README.md

@@ -1,3 +1,3 @@
 # spine-ts WebGL 
 
-Please see https://github.com/EsotericSoftware/spine-runtimes/blob/4.0/spine-ts/README.md for more information.
+Please see the top-level [README.md](../README.md) for more information.