Update README.md

README.md

@@ -10,6 +10,7 @@ It has the following features:
 * Serialize any integer value from [1,64] bits writing only that number of bits to the buffer
 * Serialize signed integer values with [min,max] writing only the required bits to the buffer
 * Serialize floats, doubles, compressed floats, strings, varints, and integers relative to another integer
+* Serialize alignment support so you can align your bitstream to a byte boundary whenever you want
 * Template based serialization system so you can write a unified serialize function instead of separate read and write functions
 
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