Formatting fixes

Author: Alan Shaw

exercises/ping_bell/problem.md

@@ -1,9 +1,9 @@
 __Create a UDP server that plays a sound when a message is received.__
 
-* Attach a piezo to pin 8.
-* Use the `dgram` node module to create a **udp4** socket.
-* Bind your server to port **1337** and listen for messages.
-* When a message is received, have the piezo play a tune.
+* Attach a piezo to pin 8
+* Use the `dgram` node module to create a **udp4** socket
+* Bind your server to port **1337** and listen for messages
+* When a message is received, have the piezo play a tune
 
 ## Circuit diagram
 
@@ -19,3 +19,5 @@ __Create a UDP server that plays a sound when a message is received.__
 
 - http://nodejs.org/api/dgram.html
 - https://github.com/rwaldron/johnny-five/blob/master/docs/piezo.md
+
+---

exercises/remote_temperature/problem.md

@@ -3,11 +3,11 @@ __Temperature near you as a service.__
 Use dnode to create an rpc server that allows anyone to query the last known
 temperature of a TMP36 temperature sensor.
 
-* Attach temperature sensor to **A0**.
-* Install dnode `npm install dnode`.
-* Setup your dnode server to listen on port 1337.
-* Your rpc endpoint should expose a function called `getTemperature`.
-* `getTemperature` should callback with the temperature in **celsius**.
+* Attach temperature sensor to **A0**
+* Install dnode `npm install dnode`
+* Setup your dnode server to listen on port 1337
+* Your rpc endpoint should expose a function called `getTemperature`
+* `getTemperature` should callback with the temperature in **celsius**
 
 ## Circuit diagram
 
@@ -32,13 +32,15 @@ GND  o-----'
 
 ## Hints
 
-- Remember, you're always working with voltages on pins.
-- The value from a sensor is a representation of the voltage on that pin.
+- Remember, you're always working with voltages on pins
+- The value from a sensor is a representation of the voltage on that pin
 - You'll need to convert that value into a useful temperature reading...
-- To create an enpoint, pass dnode an object with your endpoint as a method.
-- Your endpoint should take a callback and pass the value to it.
+- To create an enpoint, pass dnode an object with your endpoint as a method
+- Your endpoint should take a callback and pass the value to it
 
 ## Docs
 
 - https://github.com/rwaldron/johnny-five/blob/master/docs/sensor-temperature-tmp36.md
 - dnode - https://github.com/substack/dnode
+
+---

exercises/robot_arm/problem.md

@@ -46,3 +46,5 @@ GND  o---.------/\/\/------.
 - A pot produces input values between 0 and 1023.
 - A servo can typically be moved between 0 and 179 degrees.
 - `five.Fn.map` can map the pot values (0 - 1023) to servo angles (0 - 179).
+
+---

exercises/street_lamp/problem.md

@@ -1,8 +1,8 @@
 __Build a street lamp that turns on as it gets dark.__
 
-* Use photoresistor and an LED.
-* Connect the photoresistor to A0 and the LED to 9.
-* Make the LED turn on when the photoresistor's value is greater than 600.
+* Use photoresistor and an LED
+* Connect the photoresistor to A0 and the LED to 9
+* Make the LED turn on when the photoresistor's value is greater than 600
 
 ## Circuit diagram
 
@@ -28,3 +28,5 @@ __Build a street lamp that turns on as it gets dark.__
 `johnny-five` has a generic Sensor object for handling various analog inputs.
 It fires a data event with the current reading of the sensor.
 The sensor value is available to the callback as `this.value`
+
+---