docs: fix typo

Author: fleetingbytes

README.md

@@ -1,6 +1,6 @@
 # rtfparse
 
-Parses Microsofts Rich Text Format (RTF) documents. It creates an in-memory object which represents the tree structure of the RTF document. This object can in turn be rendered by using one of the renderers.
+Parses Microsoft's Rich Text Format (RTF) documents. It creates an in-memory object which represents the tree structure of the RTF document. This object can in turn be rendered by using one of the renderers.
 So far, rtfparse provides only one renderer (`HTML_Decapsulator`) which liberates the HTML code encapsulated in RTF. This will come handy, for examle, if you ever need to extract the HTML from a HTML-formatted email message saved by Microsoft Outlook.
 
 MS Outlook also tends to use RTF compression, so the CLI of rtfparse can optionally decompress that, too.