Fix formatting

Author: kahgoh

exercises/intergalactic-transmission/instructions.md

@@ -3,9 +3,9 @@
 A parity bit is simple way of detecting transmission errors.
 The transmitters and receives can only transmit and receive *exactly* eight bits at a time (including the parity bit).
 The parity bit is set so that there is an *even* number 1s in each transmission and is always the first bit from the right.
-So if the receiver receives `11000001`, `01110101` or  `01000000` (i.e. a transmission with an odd number of 1 bits), it knows there is an error. 
+So if the receiver receives `11000001`, `01110101` or  `01000000` (i.e. a transmission with an odd number of 1 bits), it knows there is an error.
 
-However, messages are rarely this short. 
+However, messages are rarely this short.
 The message needs to be transmitted in a sequence when they are longer.
 
 For example, consider the message `11000000 00000001 11000000 11011110` (or in `C0 01 C0 DE` hex).

exercises/intergalactic-transmission/introduction.md

@@ -1,6 +1,6 @@
 # Introduction
 
-Trillions upon trillions of messages zip between Earth and neighboring galaxies every millisecond. 
+Trillions upon trillions of messages zip between Earth and neighboring galaxies every millisecond.
 But transmitting over such long distances is tricky.
 Pesky solar flares, temporal distortions, stray forces, and even the flap of a space butterfly's wing can cause a random bit to change during transmission.
 
@@ -10,7 +10,7 @@ Now imagine the consequences:
 - Losing contact with the Kepler Whirl system when "save new worm hole" becomes "cave new worm hole".
 - Or plunging the universe into existential horror by replacing a cowboy emoji 🤠 with a clown emoji 🤡.
 
-Detecting corrupted messages isn’t just important — it’s critical. 
+Detecting corrupted messages isn’t just important — it’s critical.
 The receiver must know when something has gone wrong before disaster strikes.
 
 But how?