Update CoroutineScope() factory documentation (#2892)

* Update CoroutineScope() factory documentation

Fixes #2891

kotlinx-coroutines-core/common/src/CoroutineScope.kt

@@ -12,7 +12,7 @@ import kotlin.coroutines.*
 import kotlin.coroutines.intrinsics.*
 
 /**
- * Defines a scope for new coroutines. Every **coroutine builder** (like [launch], [async], etc)
+ * Defines a scope for new coroutines. Every **coroutine builder** (like [launch], [async], etc.)
  * is an extension on [CoroutineScope] and inherits its [coroutineContext][CoroutineScope.coroutineContext]
  * to automatically propagate all its elements and cancellation.
  *
@@ -28,8 +28,8 @@ import kotlin.coroutines.intrinsics.*
  * By convention, the [context of a scope][CoroutineScope.coroutineContext] should contain an instance of a
  * [job][Job] to enforce the discipline of **structured concurrency** with propagation of cancellation.
  *
- * Every coroutine builder (like [launch], [async], etc)
- * and every scoping function (like [coroutineScope], [withContext], etc) provides _its own_ scope
+ * Every coroutine builder (like [launch], [async], and others)
+ * and every scoping function (like [coroutineScope] and [withContext]) provides _its own_ scope
  * with its own [Job] instance into the inner block of code it runs.
  * By convention, they all wait for all the coroutines inside their block to complete before completing themselves,
  * thus enforcing the structured concurrency. See [Job] documentation for more details.
@@ -269,8 +269,8 @@ public suspend fun <R> coroutineScope(block: suspend CoroutineScope.() -> R): R
  * Creates a [CoroutineScope] that wraps the given coroutine [context].
  *
  * If the given [context] does not contain a [Job] element, then a default `Job()` is created.
- * This way, cancellation or failure of any child coroutine in this scope cancels all the other children,
- * just like inside [coroutineScope] block.
+ * This way, failure of any child coroutine in this scope or [cancellation][CoroutineScope.cancel] of the scope itself
+ * cancels all the scope's children, just like inside [coroutineScope] block.
  */
 @Suppress("FunctionName")
 public fun CoroutineScope(context: CoroutineContext): CoroutineScope =