fix: typo on blogs

- since the site has [blogs section](https://adarshaacharya.com.np/blog/) , and recently i found growth in audience viewing the blog, but i found that there are so many typos on my blog posts.

- So, on occasion of **Hacktoberfest** , if you can find some typos on my blog and send PR fixing it .. it might be good point if you want to get started with open source.

- Don't forget to read [contributing guidelines](https://github.com/adarshaacharya/adarshaacharya.com.np/blob/master/CONTRIBUTING.md) for getting started.. Also you can comment down below if you face any sort of problems.

Good luck!!

Review the linked blog section and read CONTRIBUTING.md before making changes. Identify typos in the blog posts, correct only those text errors, and verify that the updated posts read correctly before opening a pull request.

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