diff --git a/README.md b/README.md
index 4bc480a01..d2b5f2006 100644
--- a/README.md
+++ b/README.md
@@ -60,7 +60,7 @@ ### Installation Video Guide
 ### Traditional Installation
 
 ```bash
-# Step 1: Ensure that NPM is installed on your system. Then install mermaid-js. (If you don't have npm in your computer, please go to the Node.js offical website to install Node.js https://nodejs.org/ and then you will have npm tool in your computer.)
+# Step 1: Ensure that NPM is installed on your system. Then install mermaid-js. (If you don't have npm in your computer, please go to the Node.js official website to install Node.js https://nodejs.org/ and then you will have npm tool in your computer.)
 npm --version
 sudo npm install -g @mermaid-js/mermaid-cli
 
@@ -127,7 +127,7 @@ # Step 3: Clone the repository to your local machine, and install it.
 
     - **Use your own Browsers**
 
-    pyppeteer alow you use installed browsers,  please set the following envirment
+    pyppeteer allows you use installed browsers,  please set the following envirment
     
     ```bash
     export PUPPETEER_EXECUTABLE_PATH = /path/to/your/chromium or edge or chrome