Fix typo in runfiles documentation
Resolve a typo in the example code of 'Tools depending on tools'
Closes
@@ -689,7 +689,7 @@ Example code:
```python
def _mytool_impl(ctx):
...
- my_runfiles = ctx.runfles(files = mytool_files)
+ my_runfiles = ctx.runfiles(files = mytool_files)
for subtool in ctx.attr.subtools:
subtool_runfiles = subtool[DefaultInfo].default_runfiles
my_runfiles = my_runfiles.merge(subtool_runfiles)
