Clarify docs

src/main/kotlin/ru/dbotthepony/kommons/random/LCG64Random.kt

@@ -7,6 +7,9 @@ import java.util.random.RandomGenerator
  *
  * Internal state is presented as 64-bit integer, and high-order bits of internal state are
  * used to generate numbers.
+ *
+ * Generally shouldn't be used, and instead [PCG32Random] should be used, considering the latter has same memory
+ * requirements but has way better statistical properties.
  */
 open class LCG64Random(protected var seed: Long) : RandomGenerator {
 	override fun nextLong(): Long {

src/main/kotlin/ru/dbotthepony/kommons/random/PCG32Random.kt

@@ -3,7 +3,7 @@ package ru.dbotthepony.kommons.random
 import java.util.random.RandomGenerator
 
 /**
- * PCG XSH RR 32-bit (64-bit state) random generator, which has better statistical properties
+ * PCG XSH RR 32-bit (64-bit state) random generator, which has way better statistical properties
  * than plain [LCG64Random] generator
  */
 open class PCG32Random(protected var seed: Long) : RandomGenerator {