Update shaderblow.adoc

Fixed broken links caused by extra spaces preceding the first paragraph. 
Fixed typos in image width.
Fixed broken forum links.

src/docs/asciidoc/sdk/plugin/shaderblow.adoc

@@ -7,10 +7,10 @@
 ifdef::env-github,env-browser[:outfilesuffix: .adoc]
 
 
-image:sdk/plugin/shaderblow_intro_01.jpg[shaderblow_intro_01.jpg,with="",height=""]
+image:sdk/plugin/shaderblow_intro_01.jpg[shaderblow_intro_01.jpg,width="",height=""]
 
- Collections of effects for jMonkeyEngine 3. To install the ShaderBlow plugin into the jMonkeyEngine SDK, go to Tools→Plugins→Available Plugins. 
- You can always get the source of ShaderBlow project here:  
+Collections of effects for jMonkeyEngine 3. To install the ShaderBlow plugin into the jMonkeyEngine SDK, go to Tools→Plugins→Available Plugins. 
+You can always get the source of ShaderBlow project here:  
 link:http://code.google.com/p/jmonkeyplatform-contributions/source/browse/#svn%2Ftrunk%2Fshaderblowlib%2FShaderBlow[ShaderBlow project SVN]
 
 The source has many examples and tests to explain the capacity of shaders much better.
@@ -37,7 +37,7 @@ The source has many examples and tests to explain the capacity of shaders much b
 
 [NOTE]
 ====
-Official Forum: link:http://hub.jmonkeyengine.org/forum/topic/shaderblow-project/[http://hub.jmonkeyengine.org/forum/topic/shaderblow-project/]
+Official Forum: link:https://hub.jmonkeyengine.org/forum/t/shaderblow-project/26655[https://hub.jmonkeyengine.org/forum/t/shaderblow-project/26655]
 Or you can use the forum threads of shaders.
 ====