Update README.md with error management.

Fix kokorin#276.

README.md

@@ -41,7 +41,7 @@ Inspired by [ffmpeg-cli-wrapper](https://github.com/bramp/ffmpeg-cli-wrapper)
 
 ## Checking media streams with ffprobe
 
-See whole example [here](/src/test/java/examples/ShowStreamsExample.java).
+See whole example [here](src/test/java/examples/ShowStreamsExample.java).
 
 ```java
 FFprobeResult result = FFprobe.atPath()
@@ -60,7 +60,7 @@ for (Stream stream : result.getStreams()) {
 
 Sometimes ffprobe can't show exact duration, use ffmpeg trancoding to NULL output to get it.
 
-See whole example [here](/src/test/java/examples/ExactDurationExample.java).
+See whole example [here](src/test/java/examples/ExactDurationExample.java).
 
 ```java
 final AtomicLong durationMillis = new AtomicLong();
@@ -83,7 +83,7 @@ System.out.println("Exact duration: " + durationMillis.get() + " milliseconds");
 
 ## Re-encode and track progress
 
-See whole example [here](/src/test/java/examples/ReEncodeExample.java).
+See whole example [here](src/test/java/examples/ReEncodeExample.java).
 
 ```java
 final AtomicLong duration = new AtomicLong();
@@ -118,7 +118,7 @@ FFmpeg.atPath()
 
 Pay attention that arguments related to Input must be set at Input, not at FFmpeg.
 
-See whole example [here](/src/test/java/examples/CutAndScaleExample.java).
+See whole example [here](src/test/java/examples/CutAndScaleExample.java).
 
 ```java
 FFmpeg.atPath()
@@ -139,7 +139,7 @@ FFmpeg.atPath()
 
 ## Custom parsing of ffmpeg output
 
-See whole example [here](/src/test/java/examples/ParsingOutputExample.java).
+See whole example [here](src/test/java/examples/ParsingOutputExample.java).
 
 ```java
 // StringBuffer - because it's thread safe
@@ -165,7 +165,7 @@ System.out.println("Loudnorm report:\n" + loudnormReport);
 Ability to interact with SeekableByteChannel is one of the features, which distinct Jaffree from 
 similar libraries. Under the hood Jaffree uses tiny FTP server to interact with SeekableByteChannel.
 
-See whole example [here](/src/test/java/examples/UsingChannelsExample.java).
+See whole example [here](src/test/java/examples/UsingChannelsExample.java).
 ```java
 try (SeekableByteChannel inputChannel =
          Files.newByteChannel(pathToSrc, StandardOpenOption.READ);
@@ -188,7 +188,7 @@ requires seekable output for many formats.
 
 Under the hood pipes are not OS pipes, but TCP Sockets. This allows much higher bandwidth.
 
-See whole example [here](/src/test/java/examples/UsingStreamsExample.java).
+See whole example [here](src/test/java/examples/UsingStreamsExample.java).
 
 ```java
 try (InputStream inputStream =
@@ -209,7 +209,7 @@ try (InputStream inputStream =
 
 ## Screen Capture
 
-See whole example [here](/src/test/java/examples/ScreenCaptureExample.java).
+See whole example [here](src/test/java/examples/ScreenCaptureExample.java).
 
 ```java
 FFmpeg.atPath()
@@ -239,8 +239,8 @@ Files.move(pathToOptimized, pathToVideo, StandardCopyOption.REPLACE_EXISTING);
 
 ## Produce Video in Pure Java Code
 
-See whole example [here](/src/test/java/examples/ProduceVideoExample.java). 
-Check also more [advanced example](/src/test/java/examples/BouncingBallExample.java) which produce 
+See whole example [here](src/test/java/examples/ProduceVideoExample.java). 
+Check also more [advanced example](src/test/java/examples/BouncingBallExample.java) which produce 
 both audio and video 
 
 ```java
@@ -283,11 +283,11 @@ FFmpeg.atPath()
 
 Here is an output of the above example:
 
-![example output](/src/test/resources/examples/programmatic.gif)
+![example output](src/test/resources/examples/programmatic.gif)
 
 ### Consume Video in Pure Java Code
 
-See whole example [here](/src/test/java/examples/ExtractFramesExample.java).
+See whole example [here](src/test/java/examples/ExtractFramesExample.java).
 
 ```java
 FFmpeg.atPath()
@@ -333,10 +333,28 @@ FFmpeg.atPath()
         .execute();
 ```
 
+## Managing errors
+
+Jaffree will raise exceptions when a fatal error that causes a non-zero exit code occurs.
+
+In some cases an error can occur but FFmpeg manages to catch it and exit correctly. This can be a 
+convenient case, although sometimes one would prefer an exception to be raised to Jaffree.
+
+To do so, the [`-xerror`](https://ffmpeg.org/ffmpeg.html#Advanced-options) argument can be used to
+tell FFmpeg to exit the process with an error status when an error occurs.
+
+```java
+FFmpeg.atPath()
+      .addArgument("-xerror")
+      // ...
+```
+
+Please see [Issue 276](https://github.com/kokorin/Jaffree/issues/276) for more details on an actual
+usecase.
 
 ## FFmpeg stop
 
-See whole examples [here](/src/test/java/examples/StopExample.java).
+See whole examples [here](src/test/java/examples/StopExample.java).
 
 ### Grace stop
 
@@ -398,7 +416,7 @@ thread.interrupt();
 
 ## Java 8 Completion API
 
-See whole examples [here](/src/test/java/examples/CompletionExample.java).
+See whole examples [here](src/test/java/examples/CompletionExample.java).
 
 ```java
 ffmpeg.executeAsync().toCompletableFuture()
@@ -500,7 +518,7 @@ FFmpegResult result = FFmpeg.atPath(BIN)
 ## Programmatic mosaic video creation
 
 Jaffree allows simultaneous reading from several sources (with one instance per every source and target).
-You can find details in  Mosaic [example](/src/test/java/examples/MosaicExample.java).
+You can find details in  Mosaic [example](src/test/java/examples/MosaicExample.java).
 
 # Build & configuration