fix(webapp): some flag icons are missing

CONTRIBUTING.md

@@ -34,7 +34,7 @@ Contributions via pull requests are much appreciated. Once the approach is agree
 ## Contribute to Backend
 
 - Clone the `bigcapital` repository and `cd` into `bigcapital` directory.
-- Install all npm dependencies of the monorepo, you don't have to change directory to the `backend` package. just hit the command on root directory and it will install dependencies of all packages.
+- Install all npm dependencies of the monorepo, you don't have to change directory to the `backend` package. just hit these command on root directory and it will install dependencies of all packages.
 
 ```
 npm install
@@ -47,7 +47,7 @@ npm run bootstrap
 docker-compose up -d
 ```
 
-Wait some seconds, and hit `docker-compose ps` to see the result and you should see the same result below.
+Wait some seconds, and hit `docker-compose ps` and you should see the same result below.
 
 ```
 CONTAINER ID   IMAGE              COMMAND                  CREATED         STATUS        PORTS                               NAMES
@@ -122,7 +122,7 @@ There are many other ways to get involved with the community and to participate
 - Use the product, submitting GitHub issues when a problem is found.
 - Help code review pull requests and participate in issue threads.
 - Submit a new feature request as an issue.
-- Help answer questions on forums such as Stack Overflow and SigNoz Community Slack Channel.
+- Help answer questions on forums such as Bigcapital Community Discord Channel.
 - Tell others about the project on Twitter, your blog, etc.
 
 **[`^top^`](#)**