Added more tests and updated the presentation

presentation/presentation.md

@@ -61,17 +61,55 @@ end
 
 ---
 
+### Step 1 - "Requirements" non-trivial aspects
+
+```elixir
+receive do
+  {:propose, inst, value, t, pid_to_inform} ->
+    ...
+    broadcast({:other_propose, inst, value})
+    ...
+  {:other_propose, inst, value} -> ...
+end
+```
+
 ### Step 2 - "Prepare"
 
 ![w:600 center](./second-step.png)
 
 ---
 
+### Step 2 - "Prepare" non-trivial aspects
+
+```elixir
+receive do
+  {:nack, inst, ballot, new_ballot} ->
+    ...
+    broadcast({:abort, inst, ballot})
+    ...
+  {:abort, inst, ballot} -> ...
+end
+```
+
+---
+
 ### Step 3 - "Accept"
 
 ![w:600 center](./third-step.png)
 
---- 
+---
+
+### Step 3 - "Accept" non-trivial aspects
+
+```elixir
+receive do
+  {:accepted, inst, ballot} ->
+    ...
+    broadcast({:decide, inst, value})
+    ...
+  {:decide, inst, value} -> ...
+end
+```
 
 ### Step 4 - "Leader Crash"