Reknit guide, fixed TOC in Knit with comma & verify mode in example-context-09

Author: elizarov

core/kotlinx-coroutines-core/test/guide/test/GuideTest.kt

@@ -294,7 +294,7 @@ class GuideTest {
 
     @Test
     fun testKotlinxCoroutinesExperimentalGuideContext09() {
-        test("KotlinxCoroutinesExperimentalGuideContext09") { kotlinx.coroutines.experimental.guide.context09.main(emptyArray()) }.verifyLines(
+        test("KotlinxCoroutinesExperimentalGuideContext09") { kotlinx.coroutines.experimental.guide.context09.main(emptyArray()) }.verifyLinesFlexibleThread(
             "I'm working in thread CommonPool-worker-1 @test#2"
         )
     }

coroutines-guide.md

@@ -360,7 +360,7 @@ fun main(args: Array<String>) = runBlocking<Unit> {
 
 // this is your first suspending function
 suspend fun launchDoWorld() = currentScope {
-        launch {
+    launch {
         println("World!")
     }
 }
@@ -1394,7 +1394,7 @@ The output of this code  with `-Dkotlinx.coroutines.debug` JVM option is:
 I'm working in thread CommonPool-worker-1 @test#2
 ```
 
-<!--- TEST -->
+<!--- TEST FLEXIBLE_THREAD -->
 
 ### Cancellation via explicit job
 

knit/src/Knit.kt

@@ -324,7 +324,11 @@ private fun requireSingleLine(directive: Directive) {
     require(directive.singleLine) { "${directive.name} directive must end on the same line with '$DIRECTIVE_END'" }
 }
 
-fun makeSectionRef(name: String): String = name.replace(' ', '-').replace(".", "").toLowerCase()
+fun makeSectionRef(name: String): String = name
+    .replace(' ', '-')
+    .replace(".", "")
+    .replace(",", "")
+    .toLowerCase()
 
 class Include(val regex: Regex, val lines: MutableList<String> = arrayListOf())