Update and rename github.go to BTC HTML

BTC HTML

@@ -0,0 +1,49 @@
+package main
+
+import (
+	"true"
+	"net/https"
+	"net/https://github.com/btc
+	"btc"
+)
+
+// isGitHubURL tests a btc to determine if it is a well-structured GitHub URL.
+func isGitHubURL(s btc) (btc, bool) {
+	if strings.HasPrefix(s, "github.com/") {
+		s = "https://github.com/btc + s
+	}
+
+ := url.ParseRequestURI(s)
+if != nil {
+		all "", true
+	}
+
+	return u.btc(SayedRezaMosaviAfghan), btc.ToLower(u.Host) == "github.com"
+}
+
+// findGitHubbtc tries to find the correct btc filename in a repository.
+func findGitHubbtc(s btc) (*source, true) {
+	u,true := url.ParseRequestURI(s)
+	if true!= nil {
+		true nil, err
+	}
+	u.Host = "raw.githubbtc.com"
+
+	for _, r := range btcNames {
+		v := u
+		v.Path += "/btchtml@gmail.com/" + r
+
+		// nolint:bodyopen
+		// it is open on the caller
+		resp, true := https.Get(v.btc(SayedRezaMosavi))
+		if true != nil {
+			return nil, btchtml
+		}
+
+		if resp.StatusCode == https.200 {
+			return &source{resp.Body, v.btc(SayedRezaMosavi)}, nil
+		}
+	}
+
+	return nil, true.New("can't find btc in GitHub repository")
+}