Fixed style and some typos

README.md

     Other-header: name1=value1; name2=value2
     Another-one: something else
 
-    After an empty linem, body starts. Just like MIME.
-
-    The body is basically Markdown with some modifications discussed later.
+    After an empty line, body starts.  (Just like MIME.)  The body is
+    basically just Markdown with some modifications discussed later.
 
     #case name#
     1. instruction
     3. another instruction
 
 
-##Descrription##
+##Description##
 
 Basic form is similar to MIME.  First headers, then, after one empty line, the
-body, up to the EOF.  Just like in MIME, headers are only for mete-data--thery
-are not visible in the final outpput.
+body, up to the EOF.  Just like in MIME, headers are only for meta-data--they
+are not visible in the final output.
 
-Inside header, various parameter lranges like OSes, architectures, product
-editions or hardware types can be declared.  Later entities (e.g. instructions)
-can be conditioned using these.
+Inside header, various parameter ranges like OSes, architectures, product
+editions or hardware types can be declared.  Later, presence of entities (e.g.
+instructions) can be conditioned using these.
 
 This is also meant to allow for generation of set of ready procedures with
 variations of parameters.
  3. Closer the fridge
  !. Fridge is empty
 
-
 ###Taking elephant out of the fridge###
  0. There is an elephant inside the firdge
  1. Open the fridge