🔍 Add more eyecandy surface elev change plots to main README.md

Making the front page more catchy with an animated GIF of an active subglacial lake filling event at Subglacial Lake Whillans IX (tentatively named)! Plus we're showing some along track views for one ATL11 ground track, and a pooled elevation time-series over several crossover points within Whillans IX. Also removed a duplicated word in the 'Usage' section and added link to the deepicedrain tools page.

README.md

@@ -9,10 +9,18 @@ in Antarctica using remote sensing and machine learning.
 [![Dependabot Status](https://api.dependabot.com/badges/status?host=github&repo=weiji14/deepicedrain)](https://dependabot.com)
 ![License](https://img.shields.io/github/license/weiji14/deepicedrain)
 
-![ICESat-2 ATL11 rate of height change over time in Antarctica 2018-10-14 to 2020-07-16](https://user-images.githubusercontent.com/23487320/94127906-9755c780-fead-11ea-9a3d-622042e27541.png)
+| Ice Surface Elevation trends over Antactica | Active Subglacial Lake filling event |
+|---|---|
+| ![ICESat-2 ATL11 rate of height change over time in Antarctica 2018-10-14 to 2020-07-16](https://user-images.githubusercontent.com/23487320/94127906-9755c780-fead-11ea-9a3d-622042e27541.png) | ![dsm_whillans_ix_cycles_3-8.gif](https://user-images.githubusercontent.com/23487320/97156701-f1fb7f80-17db-11eb-880c-87df2961e1c3.gif) |
 
 ![DeepIceDrain Pipeline](https://yuml.me/diagram/scruffy;dir:LR/class/[Land-Ice-Elevation|atl06_play.ipynb]->[Convert|atl06_to_atl11.ipynb],[Convert]->[Ice-Sheet-H(t)-Series|atl11_play.ipynb],[Ice-Sheet-H(t)-Series]->[Height-Change-over-Time-(dhdt)|atlxi_dhdt.ipynb],[Height-Change-over-Time-(dhdt)]->[Subglacial-Lake-Finder|atlxi_lake.ipynb])
 
+| Along track view of an ATL11 Ground Track | Elevation time-series at Crossover Points |
+|---|---|
+| ![alongtrack_whillans_ix_1080_pt3](https://user-images.githubusercontent.com/23487320/97514092-ca323480-19f2-11eb-8d5c-c287b42eceda.png) | ![crossover_many_normalized_whillans_ix_2018-10-14_2020-07-16](https://user-images.githubusercontent.com/23487320/97514801-7e808a80-19f4-11eb-82b9-be45fccf2dc9.png) |
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 # Getting started
 
 ## Quickstart
@@ -23,9 +31,10 @@ Launch in [Pangeo Binder](https://pangeo-binder.readthedocs.io) (Interactive jup
 
 ## Usage
 
-Once you've installed properly installed the [`deepicedrain` package](deepicedrain)
-(see installation instructions further below), you'll have access to a range
-of tools for downloading and performing quick calculations on ICESat-2 datasets.
+Once you've properly installed the [`deepicedrain` package](deepicedrain)
+(see installation instructions further below), you'll have access to a
+[wide range of tools](https://github.com/weiji14/deepicedrain/tree/master/deepicedrain)
+for downloading and performing quick calculations on ICESat-2 datasets.
 The example below shows how to calculate ice surface elevation change
 on a sample ATL11 dataset between ICESat's Cycle 3 and Cycle 4.