fix diagrams

README.md

@@ -40,14 +40,14 @@ Subscriptions and messages are handled by a server:
 
 ```md
 **Josh** --(subscribe to "my-channel")-> **Server**
-**Josh** <-(subscription confirmed )-- **Server**
+**Josh** <-(subscription confirmed   )-- **Server**
 
-**Bob** --(subscribe to "my-channel")-> **Server**
-**Bob** <-(subscription confirmed )-- **Server**
+**Bob**  --(subscribe to "my-channel")-> **Server**
+**Bob**  <-(subscription confirmed   )-- **Server**
 
-**Josh** --("hello" on "my-channel" )-> **Server**
-**Josh** <-("hello" on "my-channel" )-- **Server**
-**Bob** <-("hello" on "my-channel" )-- **Server**
+**Josh** --("hello" on "my-channel"  )-> **Server**
+**Josh** <-("hello" on "my-channel"  )-- **Server**
+**Bob**  <-("hello" on "my-channel"  )-- **Server**
 ```
 
 ## Scalability
@@ -77,36 +77,36 @@ Then, John will send his messages on both "s1-and-s2" and "car-warranty". As alw
 # John and Bob subscribe:
 
 **John** --(subscribe to "car-warranty")-> **S1**
-**John** <-(subscription confirmed )-- **S1**
+**John** <-(subscription confirmed     )-- **S1**
 
-**Bob** --(subscribe to "car-warranty")-> **S2**
-**Bob** <-(subscription confirmed )-- **S2**
+**Bob**  --(subscribe to "car-warranty")-> **S2**
+**Bob**  <-(subscription confirmed     )-- **S2**
 
 ---
 
 # The servers subscribe:
 
-**S1** --(subscribe to "s1-and-s2" )-> **S2**
-**S2** --(subscribe to "s1-and-s2" )-> **S1**
+**S1**   --(subscribe to "s1-and-s2"   )-> **S2**
+**S2**   --(subscribe to "s1-and-s2"   )-> **S1**
 
 ---
 
 # Sending the Message:
 
 John sends the message to his server
-**John** --("hello" on: )-> **S1**
-( - "s1-and-s2" )
-( - "car-warranty" )
+**John** --("hello" on:                )-> **S1**
+           ( - "s1-and-s2"             )
+           ( - "car-warranty"          )
 
 S2 subscribed to "s1-and-s2", so S1 sends this message to S2
-**S1** --("hello" on: )-> **S2**
-( - "s1-and-s2" )
-( - "car-warranty" )
+**S1**   --("hello" on:                )-> **S2**
+           ( - "s1-and-s2"             )
+           ( - "car-warranty"          )
 
 Bob subscribed to "car-warranty", so S2 sends this message to Bob
-**S2** --("hello" on: )-> **Bob**
-( - "s1-and-s2" )
-( - "car-warranty" )
+**S2**   --("hello" on:                )-> **Bob**
+           ( - "s1-and-s2"             )
+           ( - "car-warranty"          )
 ```
 
 This requires John to know of "s1-and-s2" and, obviously, Bob to subscribe to "car-warranty". Jane and Alice could agree on their own primary channel and use "s1-and-s2" just like John did.