Add mermaid graph

README.md

 # Science Meets Industry 2021
 
-![Task order](./tasks/order.svg)
+```mermaid
+graph TD
+  install_platform_cypress_psoc6 --> compile_smi21
+  clone_repository_smi21 --> compile_smi21
+  install_vscode_and_platformio --> install_platform_cypress_psoc6
+  connect_psoc6_with_rc522 --> test_connection_psoc6_with_rc522
+  write_first_test --> test_connection_psoc6_with_rc522
+  upload_smi21 --> write_first_test
+  compile_smi21 --> upload_smi21
+  write_first_test --> test_wifi_connection
+  test_wifi_connection --> test_http_request
+  install_vscode_and_platformio --> optional_install_further_extensions
+  test_connection_psoc6_with_rc522 --> read_nfc_uid
+  read_nfc_uid --> read_nfc_hashtable
+  test_http_request --> read_image_snippet
+  read_nfc_uid --> read_image_snippet
+  test_http_request --> optional_read_image_snippet_ansi
+  read_nfc_uid --> optional_read_image_snippet_ansi
+  read_image_snippet --> develop_solver
+  read_nfc_hashtable --> develop_solver
+```