moving out outdated js docs

olddocs/js/lessons/landslide/challenges.md

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+# landslide challenges
+
+Coding challenges for the landslide tutorial.
+
+### ~avatar avatar fail
+
+Don't drop me on the ground without protection! I'm very fragile. Ouch!
+
+### ~
+
+## Before we get started
+
+Complete the following guided tutorial:
+
+* [tutorial](/lessons/landslide/tutorial)
+
+At the end of the tutorial, click `keep editing`. Your code should look like this:
+
+```
+input.onFall(() => {
+    images.createImage(`
+. . # . .
+. . # . .
+. . # . .
+. . . . .
+. . # . .
+`).showImage(0) // ***
+})
+```
+
+### Challenge 1
+
+Add a pause within `input->on fall` after displaying `!`. This will allow us to display another image in the next challenge.
+
+```
+input.onFall(() => {
+    images.createImage(`
+. . # . .
+. . # . .
+. . # . .
+. . . . .
+. . # . .
+`).showImage(0)
+    basic.pause(2000) // ***
+})
+```
+
+### Challenge 2
+
+Create and show an `X` image after the pause from Challenge 1.
+
+```
+input.onFall(() => {
+    images.createImage(`
+. . # . .
+. . # . .
+. . # . .
+. . . . .
+. . # . .
+`).showImage(0)
+    basic.pause(2000)
+    images.createImage(`
+# . . . #
+. # . # .
+. . # . .
+. # . # .
+# . . . #
+`).showImage(0) // ***
+})
+```
+
+* `Run` the program to see if it works as expected.
+
+### Challenge 3
+
+Now let's display a third image when the micro:bit falls! First, add `basic->pause(2000)` followed by another image of your choice. Be creative!
+