Update docker build and doc

README.rst

@@ -21,7 +21,7 @@ Running h2load against HTTP/3 endpoint
 
 In order to build h2load with HTTP/3 support, you have to build
 ngtcp2, nghttp3 and my patched OpenSSL.
-https://github.com/ngtcp2/ngtcp2/tree/draft-20#build-from-git
+https://github.com/ngtcp2/ngtcp2/tree/draft-22#build-from-git
 describes how to build these three software.
 
 To run h2load against HTTP/3 server, specify h3-22 ALPN with
@@ -29,7 +29,7 @@ To run h2load against HTTP/3 server, specify h3-22 ALPN with
 
 .. code-block:: text
 
-    $ h2load --npn-list h3-22 https://localhost:4433
+    $ h2load --npn-list h3-22 https://127.0.0.1:4433
 
 You can use Dockerfile to skip the tedious build steps to manually
 pull and build dependencies.  In order to build Docker image, do this:
@@ -43,7 +43,7 @@ Run h2load:
 
 .. code-block:: text
 
-    $ docker run --rm -it --network=host nghttp2-quic /usr/local/bin/h2load --npn-list h3-22 https://localhost:4433
+    $ docker run --rm -it --network=host nghttp2-quic /usr/local/bin/h2load --npn-list h3-22 https://127.0.0.1:4433
 
 Development Status
 ------------------

docker/Dockerfile

@@ -5,7 +5,7 @@ RUN /usr/local/bin/clean-install git g++ make binutils autoconf automake autotoo
         zlib1g libev4 libjemalloc1 libc-ares2 \
         ca-certificates psmisc \
         python && \
-    git clone --depth 1 -b quic-draft-22 https://github.com/tatsuhiro-t/openssl && \
+    git clone --depth 1 -b openssl-quic-draft-22 https://github.com/tatsuhiro-t/openssl && \
     cd openssl && ./config enable-tls1_3 --openssldir=/etc/ssl && make -j$(nproc) && make install_sw && cd .. && rm -rf openssl && \
     git clone --depth 1 https://github.com/ngtcp2/nghttp3 && \
     cd nghttp3 && autoreconf -i && \