fpspreadsheet: add readme

git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@3243 8e941d3f-bd1b-0410-a28a-d453659cc2b4

components/fpspreadsheet/readme.txt

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+fpspreadsheet
+=============
+The fpSpreadsheet library offers a convenient way to generate and read 
+spreadsheet documents in various formats:
+- Excel 2.x .xls
+- Excel 5.0/Excel 95 .xls
+- Excel 8.0 (Excel 97-XP) .xls
+- Microsoft OOXML .xlsx
+- LibreOffice/OpenOffice OpenDocument .ods
+- wikimedia wikitable formats
+
+The library is written in a very flexible manner, capable of being extended to 
+support any number of formats easily.
+
+Installation
+============
+If you only need non-GUI components: in Lazarus: 
+- Package/Open Package File 
+- select laz_fpspreadsheet.lpk
+- click Compile. 
+Now the package is known to Lazarus (and should e.g. show up in Package/Package Links). 
+Add it to your project like you add other packages.
+
+If you also want GUI components (grid and chart): 
+- Package/Open Package File
+- seleect laz_fpspreadsheet_visual.lpk
+- click Compile
+- then click Use, Install and follow the prompts to rebuild Lazarus with the new package.
+Drop needed grid/chart components on your forms as usual
+		
+License
+=======
+LGPL with static linking exception. This is the same license as is used in the Lazarus Component Library. 
+
+More information
+================
+FPSpreadsheet documentation in fpspreadsheet.chm (open e.g. with Lazarus lhelp)
+
+The fpspreadsheet article on the Lazarus wiki with lots of example:
+http://wiki.lazarus.freepascal.org/FPSpreadsheet
+
+The demo programs in the examples folder