Update manual pages

doc/h2load.1

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-.TH "H2LOAD" "1" "Sep 15, 2021" "1.45.0-DEV" "nghttp2"
+.TH "H2LOAD" "1" "Sep 20, 2021" "1.45.0" "nghttp2"
 .SH NAME
 h2load \- HTTP/2 benchmarking tool
 .

doc/nghttp.1

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-.TH "NGHTTP" "1" "Sep 15, 2021" "1.45.0-DEV" "nghttp2"
+.TH "NGHTTP" "1" "Sep 20, 2021" "1.45.0" "nghttp2"
 .SH NAME
 nghttp \- HTTP/2 client
 .

doc/nghttpd.1

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-.TH "NGHTTPD" "1" "Sep 15, 2021" "1.45.0-DEV" "nghttp2"
+.TH "NGHTTPD" "1" "Sep 20, 2021" "1.45.0" "nghttp2"
 .SH NAME
 nghttpd \- HTTP/2 server
 .

doc/nghttpx.1

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-.TH "NGHTTPX" "1" "Sep 15, 2021" "1.45.0-DEV" "nghttp2"
+.TH "NGHTTPX" "1" "Sep 20, 2021" "1.45.0" "nghttp2"
 .SH NAME
 nghttpx \- HTTP/2 proxy
 .
@@ -35,7 +35,7 @@ level margin: \\n[rst2man-indent\\n[rst2man-indent-level]]
 \fBnghttpx\fP [OPTIONS]... [<PRIVATE_KEY> <CERT>]
 .SH DESCRIPTION
 .sp
-A reverse proxy for HTTP/2, and HTTP/1.
+A reverse proxy for HTTP/3, HTTP/2, and HTTP/1.
 .INDENT 0.0
 .TP
 .B <PRIVATE_KEY>

doc/nghttpx.1.rst

@@ -14,7 +14,7 @@ SYNOPSIS
 DESCRIPTION
 -----------
 
-A reverse proxy for HTTP/2, and HTTP/1.
+A reverse proxy for HTTP/3, HTTP/2, and HTTP/1.
 
 .. describe:: <PRIVATE_KEY>