Clarify -u/--unrestricted flags.

Fixes #340

doc/rg.1

@@ -127,6 +127,12 @@ Two \-u flags will search hidden files and directories.
 Three \-u flags will search binary files.
 \-uu is equivalent to grep \-r, and \-uuu is equivalent to grep \-a \-r.
 .RS
+.PP
+Note that the \-u flags are convenient aliases for other combinations of
+flags.
+\-u aliases \[aq]\-\-no\-ignore\[aq].
+\-uu aliases \[aq]\-\-no\-ignore \-\-hidden\[aq].
+\-uuu aliases \[aq]\-\-no\-ignore \-\-hidden \-\-text\[aq].
 .RE
 .TP
 .B \-v, \-\-invert\-match
@@ -199,6 +205,15 @@ Show debug messages.
 .RS
 .RE
 .TP
+.B \-E, \-\-encoding \f[I]ENCODING\f[]
+Specify the text encoding that ripgrep will use on all files searched.
+The default value is \[aq]auto\[aq], which will cause ripgrep to do a
+best effort automatic detection of encoding on a per\-file basis.
+Other supported values can be found in the list of labels here:
+https://encoding.spec.whatwg.org/#concept\-encoding\-get
+.RS
+.RE
+.TP
 .B \-f, \-\-file FILE ...
 Search for patterns from the given file, with one pattern per line.
 When this flag is used or multiple times or in combination with the

doc/rg.1.md

@@ -89,6 +89,10 @@ Project home page: https://github.com/BurntSushi/ripgrep
   -u flags will search binary files. -uu is equivalent to grep -r, and -uuu is
   equivalent to grep -a -r.
 
+    Note that the -u flags are convenient aliases for other combinations of
+    flags. -u aliases '--no-ignore'. -uu aliases '--no-ignore --hidden'.
+    -uuu aliases '--no-ignore --hidden --text'.
+
 -v, --invert-match
 : Invert matching.