Added public files
Roughly added all public files. Probably missed some, though.
diff --git a/doc/LPC/ed2 b/doc/LPC/ed2
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+NAME
+ ed2
+
+DESCRIPTION
+ Substitutions are very advanced.
+
+ First a simple example:
+
+ s/apa/bepa/
+ This will substitue the 'apa' in current line to 'bepa'.
+ If an 'p' is appended, you will also immediately see the result.
+
+ 1,$s/apa/bepa/
+ Same, but all lines in file. Only first occurence on every line.
+
+ Any character can used instead of '/':
+ s!apa!bepa!g
+ The 'g' specifies that all occurences of apa on this line are
+ changed to bepa.
+
+ The pattern that are supposed to be replaced, can be a regular
+ expression. See ed3 about that.
+
+SEE ALSO
+ ed3(LPC)