Fix typos in Javadoc

Author: gardenappl

extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/extractors/YoutubeSubscriptionExtractor.java

@@ -20,7 +20,7 @@
 import static org.schabi.newpipe.extractor.subscription.SubscriptionExtractor.ContentSource.INPUT_STREAM;
 
 /**
- * Extract subscriptions from a Google takout export (the user has to get the JSON out of the zip)
+ * Extract subscriptions from a Google takeout export (the user has to get the JSON out of the zip)
  */
 public class YoutubeSubscriptionExtractor extends SubscriptionExtractor {
     private static final String BASE_CHANNEL_URL = "https://www.youtube.com/channel/";

extractor/src/main/java/org/schabi/newpipe/extractor/stream/StreamExtractor.java

@@ -291,7 +291,7 @@ public StreamExtractor(StreamingService service, LinkHandler linkHandler) {
     /**
      * This will return a list of available
      * <a href="https://teamnewpipe.github.io/NewPipeExtractor/javadoc/org/schabi/newpipe/extractor/stream/Subtitles.html">Subtitles</a>s.
-     * If no subtitles are available an empty list can returned.
+     * If no subtitles are available an empty list can be returned.
      *
      * @return a list of available subtitles or an empty list
      * @throws IOException
@@ -304,7 +304,7 @@ public StreamExtractor(StreamingService service, LinkHandler linkHandler) {
      * This will return a list of available
      * <a href="https://teamnewpipe.github.io/NewPipeExtractor/javadoc/org/schabi/newpipe/extractor/stream/Subtitles.html">Subtitles</a>s.
      * given by a specific type.
-     * If no subtitles in that specific format are available an empty list can returned.
+     * If no subtitles in that specific format are available an empty list can be returned.
      *
      * @param format the media format by which the subtitles should be filtered
      * @return a list of available subtitles or an empty list