Improve wording and move text up

README.md

@@ -1,5 +1,5 @@
 <div align="center">
-  <span><img src="docs/images/LushuLogo.png" alt="Lushu Logo" width="100" height="100">
+  <span><img src="docs/images/lushu-logo.png" alt="Lushu Logo" width="100" height="100">
 </div>
 
 # Lushu
@@ -27,6 +27,11 @@ string, counting occurrences, sending an alert email, etc.
 
 ## Running
 
+### Video Tutorial
+
+Check out this [3-minute Lushu Tutorial](https://youtu.be/s17i2BhI_Eo) on
+YouTube.
+
 ### Simulate Lushu
 
 Run `gradle fatJar` to generate the file `./Lushu/build/libs/Lushu.jar`. Run it
@@ -110,12 +115,6 @@ Here are some more examples of words you can input:
 Also, try specifying different YAML configuration files. You may find it easier
 to edit the example file in `./example/config.yaml`.
 
-### Video Tutorial
-
-This page describes the basic steps to run Lushu. For a more detailed description of the process,
-take a look into this
-[Lushu Tutorial](https://youtu.be/s17i2BhI_Eo)
-
 ## Testing
 
 To test, run `gradle test`. Find all source code for the tests under