update deps and README

.gitignore

@@ -0,0 +1,3 @@
+node_modules
+docs/
+coverage/

README.md

@@ -1,2 +1,16 @@
 # Cert
-Easily setup coreos clusters with encryption for communication between nodes.
+Easily obain SSL certificates from LetsEncrypt. Supports DNS-01 challenge. TypeScript ready.
+
+## Usage 
+
+```typescript
+import {Cert} from "cert";
+
+myCert = new Cert({
+    cfEmail = "some@cloudflare.email",
+    cfKey = "someCloudflareApiKey",
+    outputPath = "someOutputPath" // NOTE: if you already have certificates, make sure you put them in here, so cert only requires the missing ones
+});
+
+myCert.getDomainCert("example.com");
+```

package.json

@@ -21,5 +21,8 @@
   "bugs": {
     "url": "https://github.com/pushrocks/cert/issues"
   },
-  "homepage": "https://github.com/pushrocks/cert#readme"
+  "homepage": "https://github.com/pushrocks/cert#readme",
+  "dependencies": {
+    "letsencrypt": "^1.4.4"
+  }
 }