Add item descriptions for some BuildCraft items

static/browse/buildcraft/assembly_table/item.cg

@@ -0,0 +1,40 @@
+schema: 1
+
+officialUrl: http://www.mod-buildcraft.com/wiki/doku.php?id=architect
+
+video: VEj4CJ4DDlQ, Intro Video by Minecraft in Minutes
+
+description:<<-END
+The architect table is the block able to record portions of world in blueprints and templates. The portion of the world
+to be recorded can be defined by a set of land marks. The recording time will depend on the size of the world to record.
+
+The assembly table is a new crafting entity that allows to craft advanced BuildCraft objects, such as chipsets, wires
+or gates. It needs to be operated by lasers which will work on it. The interface looks as follows:
+
+|                 |
+|:---------------:|
+| ![GUI](gui.png) |
+
+Input material are located on the left end. It doesn't matter in which particular order theyare placed. Potential
+outputs are listed on the right end, In the middle, you will find a progress bar. Progress is also represented on the
+“Energy Required” and “Energy Stored” fields on the right pannel. The “Energy Rate” field is the amount of energy
+currently provided by lasers.
+
+In order to start the assembly table, you need to select which elements should be crafted. You may select more than one
+element, as below:
+
+|                                               |
+|:---------------------------------------------:|
+| ![multiple selection example](multi-selection.png) |
+
+In this case, the assembly table will create them, cycling one after the other.
+
+The assembly table doesn't have any spot to stores its production. It will place the output to a nearby inventory if
+any has spots available, then try nearby pipes, and finally drop the production if it doesn't find anything.
+
+|                                                    |
+|:--------------------------------------------------:|
+| ![in world example](in-world-1.png)                |
+| _assembly table with output coming back as inputs_ |
+
+END