Improve punctuation and grammar in README

README.md

@@ -3,14 +3,14 @@
 > This repository is accompanied by a [step-by-step guide on how to
 set up nginx and Let’s Encrypt with Docker](https://medium.com/@pentacent/nginx-and-lets-encrypt-with-docker-in-less-than-5-minutes-b4b8a60d3a71).
 
-`init-letsencrypt.sh` fetches ensures renewal of a Let’s Encrypt
-certificate for one or multiple domains in a docker-compose setup with
-nginx.
+`init-letsencrypt.sh` fetches and ensures the renewal of a Let’s
+Encrypt certificate for one or multiple domains in a docker-compose
+setup with nginx.
 This is useful when you need to set up nginx as a reverse proxy for an
 application.
 
 ## Installation
-1. [Install docker-compose](https://docs.docker.com/compose/install/#install-compose)
+1. [Install docker-compose](https://docs.docker.com/compose/install/#install-compose).
 
 2. Clone this repository: `git clone https://github.com/wmnnd/nginx-certbot.git .`
 
@@ -18,13 +18,13 @@ application.
 - Add domains and email addresses to init-letsencrypt.sh
 - Replace all occurrences of example.org with primary domain (the first one you added to init-letsencrypt.sh) in data/nginx/app.conf
 
-4. Run init the script
+4. Run init the script:
 ```
 chmod +x ./init-letsencrypt.sh
-sudo ./init-letsencrypt.sh
+./init-letsencrypt.sh
 ```
 
-5. Run server
+5. Run server:
 `docker-compose up`
 
 ## Got questions?