docs: Update README.md

README.md

@@ -1,2 +1,27 @@
 # Trends
 > Timeseries dashboard of trends around web searches, social media and economic indicators
+
+## Google Trends
+
+Use the UI on website to do searches. Choose a "search term" phrase or a topic from the droplist. Up to items can be added.
+
+- Google Trends webpage - https://trends.google.com/
+
+### Templates
+
+Example UI URL create searches. This is a good starting point for new searches - set to worldwide and 5 years lookback.
+
+- https://trends.google.com/trends/explore?date=today%205-y&q=foo
+
+Example of embedded data snippet. Note this consists of two scripts when copy and pasted - one for the loader and one with the actual parameters.
+
+- Keep data updated with lookback from today. e.g. `today 5-y`
+    ```javascript
+    <script type="text/javascript" src="https://ssl.gstatic.com/trends_nrtr/2051_RC11/embed_loader.js"></script>
+    <script type="text/javascript"> trends.embed.renderExploreWidget("TIMESERIES", {"comparisonItem":[{"keyword":"foo","geo":"","time":"today 5-y"}],"category":0,"property":""}, {"exploreQuery":"date=today%205-y&q=foo","guestPath":"https://trends.google.com:443/trends/embed/"}); </script> 
+    ```
+- Static data. This fixes the date range. e.g. `2015-01-07 2020-01-07`
+    ```javascript
+    <script type="text/javascript" src="https://ssl.gstatic.com/trends_nrtr/2051_RC11/embed_loader.js"></script>
+    <script type="text/javascript"> trends.embed.renderExploreWidget("TIMESERIES", {"comparisonItem":[{"keyword":"foo","geo":"","time":"2015-01-07 2020-01-07"}],"category":0,"property":""}, {"exploreQuery":"date=today%205-y&q=foo","guestPath":"https://trends.google.com:443/trends/embed/"}); </script>
+    ```