Correct diagram labels. Fixes #3

diagram.md

@@ -2,7 +2,7 @@ Edit this diagram at https://mermaid-js.github.io/mermaid-live-editor/#/edit
 ```mermaid
 classDiagram
 	None <|-- Example1: None
-	Example1 <|-- Example2: %6cf2...a982.sha256
+	Example1 <|-- Example2: %6CF2...A982.sha256
 
   class None{
     empty
@@ -13,19 +13,19 @@ classDiagram
     prev NONE
     depth 0
 
-    key1:"my_value\n"
+    key1:"my_value1"
     key2:"my_value2"
     key3:"my_value3"
-    key4:%jvKh9...bvzGM=.sha256
-    key5:&29f39...e6ca3.sha256
-    key6:@galda...WJccg=.ed25519
+    key4:%JVKH...BVZG.sha256
+    key5:&29F3...E6CA.sha256
+    key6:@GALD...JCCG.ed25519
 	}
 
 	class Example2{
-    author @DYdgK...Cve04=.ed25519
+    author @DYDG...CVE0.ed25519
     kind hello_world
-    prev NONE
-    depth 0
+    prev %6CF2...A982.sha256
+    depth 1
 
     hello:"world"
 	}