Add example output from the config_config tool

It is *highly recommended* that you run `config_config` yourself, rather
than editing configs by hand based on these examples.
The example output is included merely so that you can check whether you
get the expected result.

docs/source/quickstart.md

@@ -138,7 +138,7 @@ popd
 (this should only take a few seconds)
 
 ```bash
-mammoth_config_config.py \
+mammoth_config_config \
     config_all \
     --in_config config/multi30k.template.yaml \
     --out_config config/multi30k.yaml \

examples/config_config_output/README.md

@@ -0,0 +1,20 @@
+# mammoth_config_config example output
+
+This directory contains example output of running mammoth_config_config on the template files in the examples directory.
+
+It is *highly recommended* that you run `config_config` yourself, rather than editing configs by hand based on these examples.
+The example output is included merely so that you can check whether you get the expected result.
+
+The configs have been created for a single node with a single gpu.
+
+Note that for `config_config.yaml` the line counts (weighting) and presence of corpus files (which tasks to create) is based on dummy data, not any real corpus.
+
+```bash
+mammoth_config_config \
+    config_all \
+    --in_config examples/config_config.template.yaml \
+    --out_config config_config.yaml \
+    --n_nodes 1 \
+    --n_gpus_per_node 1
+```
+