[Docs] Tweak the ERC docs

doc/modules/erc.md

@@ -1,10 +1,15 @@
 # Prelude ERC
 
+ERC is a popular IRC client bundled with Emacs.
+ERC is both powerful and complex, that's why Prelude bundles
+some configuration for it, together with a few handy commands
+like `start-irc` and `stop-irc`.
+
 ## Customizing Server list
 
 If you want to join a list of servers on `M-x start-irc`, other than
 the default list, please redefine the variable `my-fav-irc` as follows
-in your personal config
+in your personal config:
 
 ```emacs-lisp
 (setq my-fav-irc '("irc.freenode.net"
@@ -17,7 +22,7 @@ in your personal config
 
 If you want to customize your IRC Last Quit Message from *Asta la
 vista* to something more funkier, please redefine `bye-irc-message` as
-follows
+follows:
 
 ```emacs-lisp
 (setq bye-erc-message "adios")
@@ -26,24 +31,25 @@ follows
 ## Reading NickServ passwords from auth-source plugin
 
 If you want to automatically authenticate while logging into IRC
-servers set the `erc-prompt-for-password` to nil as follows
+servers set the `erc-prompt-for-password` to nil as follows:
 
 ```emacs-lisp
 (setq erc-prompt-for-password nil)
 ```
 
-Now you can set password in plaintext in .authinfo file in the netRC
-format or you it encrypted in .authinfo.gpg file after setting up gpg
-in emacs
+Now you can set password in plaintext in `.authinfo` file in the netRC
+format or you it encrypted in `.authinfo.gpg` file after setting up gpg
+in Emacs.
 
 ## Opening all ERC buffers in a new perspective
+
 Many a time when we start IRC with the `start-irc` command, all the
 channels open in our existing workspace, which can be annoying to
 some; especially to those who like to organize their buffers into
 separate groups (perspectives). To avoid this scenario, it is better
 to group all the ERC buffers into one perspective called `IRC` when
 `start-irc` is called. To enable this set the `prelude-new-irc-persp`
-variable to true as follows
+variable to true as follows:
 
 ```emacs-lisp
 (setq prelude-new-irc-persp t)