Add bed types WIKI document and link

doc/bed-types.md

@@ -0,0 +1,27 @@
+# Multiple bed types
+
+You can enable it in printer settings.
+
+
+Once enabled, you can select the bed type in the drop-down menu, corresponding bed temperature will be set automatically.  
+You can set the bed temperature for each bed type in the filament settings as demonstrated in the following image.  
+![multi_bed](./images/bed-types.gif)  
+
+
+Orca also support `curr_bed_type` variable in custom G-code. 
+For example, the following sample G-codes can detect the selected bed type and adjust the G-code offset accordingly for Klipper:  
+```
+{if curr_bed_type=="Textured PEI Plate"}
+  SET_GCODE_OFFSET Z=-0.05
+{else}
+  SET_GCODE_OFFSET Z=0.0
+{endif}
+```
+
+available bed types are:
+```
+"Cool Plate"
+"Engineering Plate"
+"High Temp Plate"
+"Textured PEI Plate"
+```

src/slic3r/GUI/Plater.cpp

@@ -702,6 +702,9 @@ Sidebar::Sidebar(Plater *parent)
             bed_type_title->SetFont(font);
             SetCursor(wxCURSOR_ARROW);
         });
+        bed_type_title->Bind(wxEVT_LEFT_UP, [bed_type_title, this](wxMouseEvent &e) {
+            wxLaunchDefaultBrowser("https://github.com/SoftFever/OrcaSlicer/wiki/bed-types");
+        });
 
         AppConfig *app_config = wxGetApp().app_config;
         std::string str_bed_type = app_config->get("curr_bed_type");

src/slic3r/GUI/Tab.cpp

@@ -3525,7 +3525,7 @@ void TabPrinter::build_fff()
         optgroup->append_single_option_line(option);
         // optgroup->append_single_option_line("printable_area");
         optgroup->append_single_option_line("printable_height");
-        optgroup->append_single_option_line("support_multi_bed_types");
+        optgroup->append_single_option_line("support_multi_bed_types","bed-types");
         optgroup->append_single_option_line("nozzle_volume");
         optgroup->append_single_option_line("best_object_pos");
         optgroup->append_single_option_line("z_offset");