Add readme to examples dir (#282)

* add docs for generate.py

* add docs for generate.py

* formatting

examples/README.md

@@ -0,0 +1,71 @@
+## generate.py
+
+This program takes a JSON list of strings from standard input, sends each input string to an LLM as a prompt, and returns a list of dictionaries, with a `"prompt"` and `"answer"` key for each original prompt.
+
+To execute it, run
+
+```bash
+python generate.py
+```
+
+And then type some prompts in list form, e.g.
+
+```bash
+["What is spaCy?", "What is Rust?"]
+```
+
+followed by an EOF-marker (Ctrl-d on Linux or Mac, Ctrl-z on Windows) and an enter.
+The output will look something like this:
+
+```python
+[
+    {"prompt": "What is spaCy?",
+     "answer": "spaCy is a Python library for natural language processing. It is designed to be easy to use and highly customizable, making it a great tool for developers and researchers."},
+    {"prompt": "What is Rust?",
+     "answer": "Rust is a programming language that is designed to be a safe, concurrent, and efficient replacement for C++. It is a statically-typed language that is designed to be memory-safe and thread-safe, which means that it can be used to write high-performance, low-latency applications. Rust is designed to be a modern, high-performance programming language that is designed to be easy to use and easy to learn."}
+]
+```
+
+To get the full list of options and defaults for this command, run
+
+```bash
+python generate.py --help
+```
+
+## passive2active.py
+
+This program takes a JSON list of passive sentences from standard input, and returns a list of dictionaries, with a `"passive"` and `"active"` key for each original sentence.
+
+To execute it, run
+
+```bash
+python passive2active.py
+```
+
+And then type some prompts in list form, e.g.
+
+```bash
+["The medal was won by the Dutch speed skater.", "Anita was driven to the theatre by Carla."]
+```
+
+followed by an EOF-marker (Ctrl-d on Linux or Mac, Ctrl-z on Windows) and an enter.
+The output will look something like this:
+
+```python
+[
+  {
+    "passive": "The medal was won by the Dutch speed skater.",
+    "active": "The Dutch speed skater won the medal."
+  },
+  {
+    "passive": "Anita was driven to the theatre by Carla.",
+    "active": "Carla drove Anita to the theatre."
+  }
+]
+```
+
+To get the full list of options and defaults for this command, run
+
+```bash
+python passive2active.py --help
+```