add doc.md files from master

lib/config/doc.md

@@ -0,0 +1,85 @@
+# config
+--
+    import "github.com/go-i2p/go-i2p/lib/config"
+
+
+## Usage
+
+```go
+var DefaultBootstrapConfig = BootstrapConfig{
+	LowPeerThreshold: 10,
+
+	ReseedServers: []*ReseedConfig{},
+}
+```
+default configuration for network bootstrap
+
+```go
+var DefaultNetDbConfig = NetDbConfig{
+	Path: filepath.Join(defaultConfig(), "netDb"),
+}
+```
+default settings for netdb
+
+```go
+var RouterConfigProperties = DefaultRouterConfig()
+```
+
+#### type BootstrapConfig
+
+```go
+type BootstrapConfig struct {
+	// if we have less than this many peers we should reseed
+	LowPeerThreshold int
+	// reseed servers
+	ReseedServers []*ReseedConfig
+}
+```
+
+
+#### type NetDbConfig
+
+```go
+type NetDbConfig struct {
+	// path to network database directory
+	Path string
+}
+```
+
+local network database configuration
+
+#### type ReseedConfig
+
+```go
+type ReseedConfig struct {
+	// url of reseed server
+	Url string
+	// fingerprint of reseed su3 signing key
+	SU3Fingerprint string
+}
+```
+
+configuration for 1 reseed server
+
+#### type RouterConfig
+
+```go
+type RouterConfig struct {
+	// the path to the base config directory where per-system defaults are stored
+	BaseDir string
+	// the path to the working config directory where files are changed
+	WorkingDir string
+	// netdb configuration
+	NetDb *NetDbConfig
+	// configuration for bootstrapping into the network
+	Bootstrap *BootstrapConfig
+}
+```
+
+router.config options
+
+#### func  DefaultRouterConfig
+
+```go
+func DefaultRouterConfig() *RouterConfig
+```