move lessons out of web site

will move select lessons back to "educators" section

docs/blocks.md

@@ -0,0 +1,8 @@
+# Blocks language
+
+```namspaces
+for (let i = 0;i<5;++i) {}
+if (true){}
+let x = 0;
+Math.random(5);
+```

docs/reference.md

@@ -21,11 +21,3 @@ serial.writeNumber(0);
 control.inBackground(() => {
     
 });
-
-```
-<!-- No language reference for now, until
-for (let i = 0;i<5;++i) {}
-if (true){}
-let x = 0;
-Math.random(5);
--->