[Cassandra Wiki] Trivial Update of "GettingStarted_draft" by MakiWatanabe

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The "GettingStarted_draft" page has been changed by MakiWatanabe:
http://wiki.apache.org/cassandra/GettingStarted_draft?action=diff&rev1=63&rev2=64

Comment:
Verify and fix Wiki rendering. Still need some work at end.

   
  Users of Debian or Debian-based derivatives can install the latest stable release in package form, see DebianPackaging for details.
   
- Users of RPM-based distributions can get packages from [[http://www.datastax.com/blog/announcing-rpms-cassandra|Datastax].
+ Users of RPM-based distributions can get packages from [[http://www.datastax.com/blog/announcing-rpms-cassandra|Datastax]].
   
  If you are interested in building Cassandra from source, please refer to [[HowToBuild|How to Build]] page.
   
- For more details, please refer to [[VersionsAndBuilds|Cassanra Versions and Builds] page.
+ For more details about misc builds, please refer to [[VersionsAndBuilds|Cassandra versions and builds]] page.
   
  <<Anchor(running_a_single_node)>>
   
@@ -59, +59 @@

  JMX_PORT="7199"
  }}}
   
- By default, Cassandra will allocate memory based on physical memory your system has.  
+ By default, Cassandra will allocate memory based on physical memory your system has. 
+ For example it will allocate 1GB heap on 2GB system, and 2GB heap on 8GB system.
  If you want to specify Cassandra heap size,  remove  leading pound sign(#) on the following lines and specify memory size for them. 
  {{{
  #MAX_HEAP_SIZE="4G"
@@ -80, +81 @@

  
  == Step 3: Start up Cassandra ==
  And now for the moment of truth, start up Cassandra by invoking `bin/cassandra -f` from the command line<<FootNote(To learn more about controlling the behavior of startup scripts, see RunningCassandra.)>>. The service should start in the foreground and log gratuitously to standard-out. Assuming you don't see messages with scary words like "error", or "fatal", or anything that looks like a Java stack trace, then chances are you've succeeded. 
- 
-  Note about mx4j and jna error: You may find errors related to mx4j and/or jna at start up such like following:
- {{{
- }}}
- mx4j and jna are optional java libraries you can load into Cassandra. Please refer to following links for more details.
  
  Press "Control-C" to stop Cassandra.