More doc fixes (#511)

* more doc fixes

* more fixes

docs/projects/fireflies.md

@@ -130,3 +130,7 @@ basic.forever(() => {
 radio.setTransmitPower(1)
 radio.setGroup(12)
 ```
+
+```package
+radio
+```

docs/projects/reaction-time/code.md

@@ -1,8 +1,6 @@
 # Code
 ### @description code to make the Reaction Time interactive
 
-![](/static/mb/courses/stem/reaction_time_complete.jpg)
-
 This lesson uses the @boardname@ to measure the reaction time of a student by completing a circuit on a board. The student will be measuring his/her reaction time in an undistracted environment and a distracted environment.  
 
 Connect each piece of foil to the appropriate pin on the @boardname@.  

docs/projects/rps-teams.md

@@ -220,4 +220,8 @@ basic.forever(() => {
 players = [0]
 radio.setGroup(10)
 radio.setTransmitSerialNumber(true)
+```
+
+```package
+radio
 ```