add some chains (#6)

chains/hello-world/README.md

@@ -0,0 +1,13 @@
+# Hello World
+
+## Description
+
+A simple LLMChain that takes in a topic and generates a joke about it.
+
+## Chain type
+
+LLMChain
+
+## Input Variables
+
+- `topic`: topic to generate a joke about

chains/hello-world/chain.json

@@ -0,0 +1,28 @@
+{
+    "memory": null,
+    "verbose": false,
+    "prompt": {
+        "input_variables": [
+            "topic"
+        ],
+        "output_parser": null,
+        "template": "Tell me a joke about {topic}:",
+        "template_format": "f-string",
+        "_type": "prompt"
+    },
+    "llm": {
+        "model_name": "text-davinci-003",
+        "temperature": 0.9,
+        "max_tokens": 256,
+        "top_p": 1,
+        "frequency_penalty": 0,
+        "presence_penalty": 0,
+        "n": 1,
+        "best_of": 1,
+        "request_timeout": null,
+        "logit_bias": {},
+        "_type": "openai"
+    },
+    "output_key": "text",
+    "_type": "llm_chain"
+}

chains/readme_template

@@ -0,0 +1,7 @@
+# {Title}
+
+## Description
+
+## Chain type
+
+## Input Variables