diff --git a/.github/workflows/typo-check.yml b/.github/workflows/typo-check.yml
new file mode 100644
index 0000000..84e6eca
--- /dev/null
+++ b/.github/workflows/typo-check.yml
@@ -0,0 +1,21 @@
+name: Typo Check
+on: [pull_request]
+
+jobs:
+  typo-check:
+    runs-on: ubuntu-latest
+    timeout-minutes: 10
+    env:
+      FORCE_COLOR: 1
+      TYPOS_VERSION: v1.19.0
+    steps:
+      - name: download typos
+        run: curl -LsSf https://github.com/crate-ci/typos/releases/download/$TYPOS_VERSION/typos-$TYPOS_VERSION-x86_64-unknown-linux-musl.tar.gz | tar zxf - -C ${CARGO_HOME:-~/.cargo}/bin
+
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          ref: ${{ github.event.pull_request.head.sha }}
+
+      - name: check typos
+        run: typos
diff --git a/README.md b/README.md
index 1cc6dcd..a590047 100644
--- a/README.md
+++ b/README.md
@@ -15,7 +15,7 @@ Next-gen PHPDoc parser with support for intersection types and generics(TypeScri
 
 This parser is inspired by the PHPStan's phpdoc-parser library: https://github.com/phpstan/phpdoc-parser
 
-this libraray `@rightcapital/phpdoc-parser` represents PHPDocs with an AST (Abstract Syntax Tree). It supports parsing and modifying PHPDocs by using `TypeScript`/`JavaScript`.
+This library `@rightcapital/phpdoc-parser` represents PHPDocs with an AST (Abstract Syntax Tree). It supports parsing and modifying PHPDocs by using `TypeScript`/`JavaScript`.
 
 For the complete list of supported PHPDoc features check out PHPStan documentation.
 
diff --git a/_typos.toml b/_typos.toml
new file mode 100644
index 0000000..5d98a48
--- /dev/null
+++ b/_typos.toml
@@ -0,0 +1,3 @@
+[default.extend-words]
+Ue = "Ue"
+ND = "ND"
\ No newline at end of file
diff --git a/docs/CONTRIBUTING.md b/docs/CONTRIBUTING.md
index 95355eb..99ebfc6 100644
--- a/docs/CONTRIBUTING.md
+++ b/docs/CONTRIBUTING.md
@@ -7,7 +7,7 @@ Please note we have a [code of conduct](CODE_OF_CONDUCT.md), please follow it in
 
 To set up a development environment, please follow these steps:
 
-1. Before cloning the repo, ensure you have the following softwares installed.
+1. Before cloning the repo, ensure you have the following software installed.
 
    - `Node.js` (You should install a [version manager](https://github.com/shadowspawn/node-version-usage) that could handle .node-version file)
    - `pnpm` (You might have already installed it if you enabled the [Corepack](https://nodejs.org/api/corepack.html) feature)
diff --git a/src/phpdoc-parser/printer/differ.ts b/src/phpdoc-parser/printer/differ.ts
index 470f3c1..fc973b5 100644
--- a/src/phpdoc-parser/printer/differ.ts
+++ b/src/phpdoc-parser/printer/differ.ts
@@ -10,7 +10,7 @@ import { DiffElem, DiffElemType } from './diff-elem';
  *
  * Implements the Myers diff algorithm.
  *
- * Myers, Eugene W. "An O (ND) difference algorithm and its variations."
+ * Myers, Eugene W. "An O(ND) difference algorithm and its variations."
  * Algorithmica 1.1 (1986): 251-266.
  *
  * @template T