fix format error

docs/modules/ROOT/pages/jme3.adoc

@@ -102,7 +102,7 @@ Now that you understood the basics, let's put it all together. The following int
 
 *  <<jme3/intermediate/multi-media_asset_pipeline#,Multi-Media Asset Pipeline>>
 *  <<jme3/scenegraph_for_dummies#,3D Scene Graph for Dummies>>
-**  <<jme3/beginner/hellovector#,Vector visualization &amp; vector operations>> –
+**  <<jme3/beginner/hellovector#,Vector visualization &amp; vector operations>>
 *  <<jme3/terminology#,3D Graphics Terminology>>
 *  <<jme3/intermediate/how_to_use_materials#,How to Use Materials>>
 *  <<jme3/intermediate/transparency_sorting#,Transparency Sorting>>
@@ -111,7 +111,7 @@ Now that you understood the basics, let's put it all together. The following int
 
 === Game Tutorials
 
-*  link:++https://gamedevelopment.tutsplus.com/tutorials/make-a-neon-vector-shooter-in-jmonkeyengine-the-basics--gamedev-11616++[Neon Vector Shooter tutorial on Tuts+]
+*  link:https://gamedevelopment.tutsplus.com/tutorials/make-a-neon-vector-shooter-in-jmonkeyengine-the-basics--gamedev-11616[Neon Vector Shooter tutorial on Tuts+]
 
 === Video Use Case Tutorials
 
@@ -120,9 +120,9 @@ Now that you understood the basics, let's put it all together. The following int
 These videos use alpha features only available in the next release.
 ====
 
-*  link:http://www.youtube.com/watch?v=-OzRZscLlHY[Video: jMonkeyEngine SDK Use Case Demo 1 (Quixote)]
-**  <<jme3/advanced/sourcecode#,Source Code>>    
-*  link:http://www.youtube.com/watch?v=6-YWxD3JByE[Video: jMonkeyEngine SDK Use Case Demo 2 (Models and Materials)]
+*  link:https://youtu.be/-OzRZscLlHY[Video: jMonkeyEngine SDK Use Case Demo 1 (Quixote)] 
+**  <<jme3/advanced/sourcecode#,Source Code>> 
+*  link:https://youtu.be/6-YWxD3JByE[Video: jMonkeyEngine SDK Use Case Demo 2 (Models and Materials)]
 
 Learn from sample code in link:https://github.com/jMonkeyEngine/jmonkeyengine/tree/master/jme3-examples/src/main/java/jme3test[src/main/java/jme3test] (also available in the sdk by `menu:File[New Project>JME3 Tests]`) and the example games provided by the community!
 
@@ -136,10 +136,10 @@ Now that you understand the concepts, it's time to make the most of the jMonkeyE
 *  <<jme3/advanced/update_loop#,Update Loop>>
 *  <<jme3/advanced/application_states#,Application States>>
 *  <<jme3/advanced/custom_controls#,Custom Controls>>
-**  link:http://www.youtube.com/watch?v=MNDiZ9YHIpM[Video: How to control any scene node]
+**  link:https://www.youtube.com/watch?v=MNDiZ9YHIpM[Video: How to control any scene node]
 ***  <<jme3/advanced/sourcecode#,Source Code>>    
-**  link:http://www.youtube.com/watch?v=-OzRZscLlHY[Video: How to remote control a character in a scene]
-***  <<jme3/advanced/sourcecode#how-to-control-a-character-in-a-scene-source-code#,Source Code>>    
+**  link:https://www.youtube.com/watch?v=-OzRZscLlHY[Video: How to remote control a character in a scene]
+*** <<jme3/advanced/sourcecode#how-to-control-a-character-in-a-scene-source-code#,Source Code>>    
 
 *  <<jme3/advanced/multithreading#,Multithreading>>