Removed (almost) all Try examples in documentation/comment blocks (#69)

* Remove Try from fx in documentation/comment blocks

Co-authored-by: Alberto Ballano <aballano@users.noreply.github.com>

arrow-docs/docs/fx/polymorphism/README.md

@@ -85,16 +85,16 @@ fun main() {
 }
 ```
 
-*Fx over `Try`*
+*Fx over `Either`*
 ```kotlin:ank:playground
-import arrow.core.Try
+import arrow.core.Either
 import arrow.core.extensions.fx
 
 //sampleStart
 val result =
-  Try.fx {
-    val (one) = Try { 1 }
-    val (two) = Try { one + one }
+  Either.fx<Throwable, Int> {
+    val (one) = Either.right(1)
+    val (two) = Either.right(one + one)
     two
   }
 //sampleEnd

arrow-docs/docs/integrations/reactor/README.md

@@ -154,14 +154,14 @@ fun main() {
 ```
 
 ```kotlin:ank:fail
-import arrow.core.Try
+import arrow.fx.IO
 
 // This will result in a stack overflow
-Try {
+IO {
   MonoK.monad().fx.monad {
     (1..50000).fold(just(0)) { acc: Kind<ForMonoK, Int>, x: Int ->
       just(acc.bind() + 1)
     }.bind()
   }.fix().mono.block()
-}
+}.attempt().unsafeRunSync()
 ```

arrow-docs/docs/integrations/rx2/README.md

@@ -217,14 +217,18 @@ fun main() {
 ```
 
 ```kotlin:ank:fail
-import arrow.core.Try
+import arrow.Kind
+import arrow.fx.IO
+import arrow.fx.rx2.*
+import arrow.fx.rx2.extensions.flowablek.monad.monad
+
 // This will result in a stack overflow
 
-Try {
+IO {
   FlowableK.monad().fx.monad {
     (1..50000).fold(just(0)) { acc: Kind<ForFlowableK, Int>, x: Int ->
       just(acc.bind() + 1)
     }.bind()
   }.fix().flowable.blockingFirst()
-}
+}.attempt().unsafeRunSync()
 ```