erlang syntax highlighting in README

README.md

@@ -57,7 +57,7 @@ browse key data in a running system.
 An interesting application of gproc is building publish/subscribe patterns.
 Example:
 
-```
+```erlang
 
 subscribe(EventType) ->
     %% Gproc notation: {p, l, Name} means {(p)roperty, (l)ocal, Name}

doc/README.md

@@ -57,7 +57,7 @@ browse key data in a running system.
 An interesting application of gproc is building publish/subscribe patterns.
 Example:
 
-```
+```erlang
 
 subscribe(EventType) ->
     %% Gproc notation: {p, l, Name} means {(p)roperty, (l)ocal, Name}

doc/overview.edoc

@@ -45,7 +45,7 @@ browse key data in a running system.
 An interesting application of gproc is building publish/subscribe patterns.
 Example:
 
-<pre>
+<pre lang="erlang">
 subscribe(EventType) ->
     %% Gproc notation: {p, l, Name} means {(p)roperty, (l)ocal, Name}
     gproc:reg({p, l, {?MODULE, EventType}}).