feat: Rename and add some comments

1. I originally planned to use Python, and after thinking about it, I still used Bash.
2. The script depends on cURL, but you need to solve it yourself.

install-release-dat.sh → install-dat-release.sh

@@ -1,16 +1,23 @@
 #!/bin/bash
 
+# This Bash script to install the latest release of geoip.dat and geosite.dat:
+
+# https://github.com/v2ray/geoip
+# https://github.com/v2ray/domain-list-community
+
+# Need cURL, please solve it by yourself
+
 V2RAY="/usr/local/lib/v2ray/"
 DOWNLOAD_LINK_GEOIP="https://github.com/v2ray/geoip/releases/latest/download/geoip.dat"
 DOWNLOAD_LINK_GEOSITE="https://github.com/v2ray/domain-list-community/releases/latest/download/dlc.dat"
 
 download_geoip() {
-    curl -L -H 'Cache-Control: no-cache' -o "${V2RAY}geoip.dat.new" "$DOWNLOAD_LINK_GEOIP" -#
+    curl -L -H 'Cache-Control: no-cache' -o "${V2RAY}geoip.dat.new" "$DOWNLOAD_LINK_GEOIP"
     if [ "$?" -ne '0' ]; then
         echo 'error: Download failed! Please check your network or try again.'
         exit 1
     fi
-    curl -L -H 'Cache-Control: no-cache' -o "${V2RAY}geoip.dat.sha256sum.new" "$DOWNLOAD_LINK_GEOIP.sha256sum" -#
+    curl -L -H 'Cache-Control: no-cache' -o "${V2RAY}geoip.dat.sha256sum.new" "$DOWNLOAD_LINK_GEOIP.sha256sum"
     if [ "$?" -ne '0' ]; then
         echo 'error: Download failed! Please check your network or try again.'
         exit 1
@@ -24,12 +31,12 @@ download_geoip() {
 }
 
 download_geosite() {
-    curl -L -H 'Cache-Control: no-cache' -o "${V2RAY}geosite.dat.new" "$DOWNLOAD_LINK_GEOSITE" -#
+    curl -L -H 'Cache-Control: no-cache' -o "${V2RAY}geosite.dat.new" "$DOWNLOAD_LINK_GEOSITE"
     if [ "$?" -ne '0' ]; then
         echo 'error: Download failed! Please check your network or try again.'
         exit 1
     fi
-    curl -L -H 'Cache-Control: no-cache' -o "${V2RAY}geosite.dat.sha256sum.new" "$DOWNLOAD_LINK_GEOSITE.sha256sum" -#
+    curl -L -H 'Cache-Control: no-cache' -o "${V2RAY}geosite.dat.sha256sum.new" "$DOWNLOAD_LINK_GEOSITE.sha256sum"
     if [ "$?" -ne '0' ]; then
         echo 'error: Download failed! Please check your network or try again.'
         exit 1