Sync from bytedesk-private: update

modules/python/vendors/FunASR/runtime/ssl_key/readme.md

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+## certificate generation by yourself
+generated certificate may not suitable for all browsers due to security concerns. you'd better buy or download an authenticated ssl certificate from authorized agency.
+
+```shell
+### 1) Generate a private key
+openssl genrsa -des3 -out server.key 2048
+ 
+### 2) Generate a csr file
+openssl req -new -key server.key -out server.csr
+ 
+### 3) Remove pass
+cp server.key server.key.org 
+openssl rsa -in server.key.org -out server.key
+ 
+### 4) Generated a crt file, valid for 1 year
+openssl x509 -req -days 365 -in server.csr -signkey server.key -out server.crt
+```