add readme for wolfssh recipe

recipes-wolfssl/wolfssh/README.md

@@ -0,0 +1,24 @@
+To add wolfssh (and /usr/bin/wolfsshd installed) add the following to the conf/local.cnf file in the build directory.
+
+```
+IMAGE_INSTALL_append = " wolfssh "
+```
+
+If wanting to increase SFTP throughput the folloing could be added to a wolfssh_%.bbappend file created in the directory meta-wolfssl/recipes-wolfssl/wolfssh/
+
+```
+CPPFLAGS_append = "-DWOLFSSH_MAX_SFTP_RW=64000"
+```
+
+Instaling the example applications (more robust client applications are in the works, these are examples) could be done by adding the following in the bbappend file.
+
+```
+do_install_append() {
+    cp ${WORKDIR}/build/examples/client/.libs/client ${D}/usr/bin/wolfssh
+    cp ${WORKDIR}/build/examples/sftpclient/.libs/wolfsftp ${D}/usr/bin/
+    cp ${WORKDIR}/build/examples/scpclient/.libs/wolfscp ${D}/usr/bin/
+}
+```
+
+
+