add readme and .style.yapf for formatting

crawler/README.md

@@ -0,0 +1,26 @@
+# Setup
+
+```bash
+pip install -r requirements.txt
+```
+
+# Formatting
+
+```bash
+yapf --style .style.yapf --recursive .
+```
+
+For VSCode - install yapf extension.
+Enable formatting using yap and the style file in this repo (there may be an easier way; I put this in my user settings json):
+
+```
+{
+    "[python]": {
+        "editor.formatOnSaveMode": "file",
+        "editor.formatOnSave": true,
+        "editor.defaultFormatter": "eeyore.yapf",
+        "editor.formatOnType": false
+      },
+      "yapf.args": ["--style", "/home/wizard/code/realestate-crawler/crawler/.style.yapf"]
+}
+```