diff --git a/README.md b/README.md
index e07fd70..a8ddc1c 100644
--- a/README.md
+++ b/README.md
@@ -19,9 +19,9 @@ This creates a website with a fullscreen map of points from a Google Spreadsheet
 5. Click File -> **Publish to the web** -> Start Publishing and copy the URL it gives you.
 6. **Give your spreadsheet some data**!
 7. Back in GitHub, on your fork's page (it should be github.com/yourusername/mappy), **edit the `index.html` file**  by clicking the file name to view the file and then 'edit' to make changes. You must change:
- - The `URL` variable on **line 26** to the key (or full URL) from your spreadsheet.
+ - The `URL` variable on **line 29** to the key (or full URL) from your spreadsheet.
  - On **line 32** replace `["placename", "photo-url"]` with column headers from your spreadsheet that you'd like to use in your map marker's popup.
-  - If you don't want a popup, delete **lines 32 and 34**, and change **line 41** to `Sheetsee.addMarkerLayer(geoJSON, map)`.
+  - If you don't want a popup, delete **lines 35 - 37**, and change **line 48** to `Sheetsee.addMarkerLayer(geoJSON, map)`.
 8. If you want to change more things, go for it and checkout the comments in the file for suggetions.
 9. **Commit your changes**. At the bottom of the page your editing on, click the green commit button.
 10. **View your page!** Visit: `yousername.github.io/mappy` to see your page, live!