diff --git a/doc/imgs/hi_1.jpg b/doc/imgs/hi_1.jpg new file mode 100644 index 0000000000000000000000000000000000000000..be4b6094bf5de105ce8607a2999229aaf36b734a Binary files /dev/null and b/doc/imgs/hi_1.jpg differ diff --git a/doc/imgs/hi_2.jpg b/doc/imgs/hi_2.jpg new file mode 100644 index 0000000000000000000000000000000000000000..bd7757915d2e2f71604781688a97648ddd34197e Binary files /dev/null and b/doc/imgs/hi_2.jpg differ diff --git a/doc/imgs/mr_1.jpg b/doc/imgs/mr_1.jpg new file mode 100644 index 0000000000000000000000000000000000000000..a518e03cd301607660bc71930887d4fb2363ad29 Binary files /dev/null and b/doc/imgs/mr_1.jpg differ diff --git a/doc/imgs/mr_2.jpg b/doc/imgs/mr_2.jpg new file mode 100644 index 0000000000000000000000000000000000000000..0fe8557ed185c37f0ef0c438e2a32fd03f53b4ed Binary files /dev/null and b/doc/imgs/mr_2.jpg differ diff --git a/doc/imgs/ne_1.jpg b/doc/imgs/ne_1.jpg new file mode 100644 index 0000000000000000000000000000000000000000..95b117f810bd1704783c85bebc2cc1f4dde849d9 Binary files /dev/null and b/doc/imgs/ne_1.jpg differ diff --git a/doc/imgs/ne_2.jpg b/doc/imgs/ne_2.jpg new file mode 100644 index 0000000000000000000000000000000000000000..cc6e45b1c2d5700504bdb28c30374d0592062b7a Binary files /dev/null and b/doc/imgs/ne_2.jpg differ