MAINT: update docs URL (latest -> stable)

Author: lizgehret

q2cli/builtin/info.py

@@ -87,7 +87,7 @@ def info(config_level):
     if config_level:
         click.secho('To get help with configuring and/or understanding '
                     'QIIME 2 parallelization, visit '
-                    'https://use.qiime2.org/en/latest/references/'
+                    'https://use.qiime2.org/en/stable/references/'
                     'parallel-configuration.html')
 
     click.secho('\n')