Add DEMO.md

DEMO.md

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+# vim: set buftype=nofile colorcolumn= scrolloff=0 noshowcmd:
+
+vim-easy-align
+==============
+
+Where's Lennon?
+---------------
+
+Paul McCartney 1942
+George Harrison 1943
+Ringo Starr 1940
+Pete Best 1941
+
+
+Formatting table
+----------------
+```
+
+| Option| Type | Default | Description |
+|--|--|--|--|
+| threads | Fixnum | 1 | number of threads in the thread pool |
+|queues |Fixnum | 1 | number of concurrent queues |
+|queue_size | Fixnum | 1000 | size of each queue |
+|   interval | Numeric | 0 | dispatcher interval for batch processing |
+|batch | Boolean | false | enables batch processing mode |
+ |batch_size | Fixnum | nil | number of maximum items to be assigned at once |
+ |logger | Logger | nil | logger instance for debug logs |
+
+```
+Operators with = sign
+---------------------
+```ruby
+
+a =
+a = 1
+bbbb = 2
+ccccccc = 3
+ccccccccccccccc
+ddd = 4
+eeee === eee = eee = eee=f
+fff = ggg += gg &&= gg
+g != hhhhhhhh == 888
+i   := 5
+i     %= 5
+i       *= 5
+j     =~ 5
+j   >= 5
+aa      =>         123
+aa <<= 123
+aa        >>= 123
+bbb               => 123
+c     => 1233123
+d   =>      123
+dddddd &&= 123
+dddddd ||= 123
+dddddd /= 123
+gg <=> ee
+
+```
+Formatting YAML (or JSON)
+-------------------------
+```yaml
+
+mysql:
+  # JDBC driver for MySQL database:
+  driver: com.mysql.jdbc.Driver
+  # JDBC URL for the connection (jdbc:mysql://HOSTNAME/DATABASE)
+  url: jdbc:mysql://localhost/test
+  database: test
+  "user:pass":r00t:pa55
+
+```
+Using blockwise-visual mode or negative field index
+---------------------------------------------------
+```ruby
+
+options = { :caching => nil,
+            :versions => 3,
+            "cache=blocks" => false }.merge(options)
+
+```
+Commas
+------
+
+aaa,   bb,c
+d,eeeeeee
+fffff, gggggggggg,
+h, ,           ii
+j,,k
+
+