chore(README.md): fix capitalization of OpenCommit in setup and usage sections

docs(README.md): fix typo in Git hook section

Author: di-sukharev

README.md

@@ -20,15 +20,15 @@ All the commits in this repo are done with OpenCommit — look into [the commits
 
 ## Setup
 
-1. Install opencommit globally to use in any repository:
+1. Install OpenCommit globally to use in any repository:
 
    ```sh
    npm install -g opencommit
    ```
 
 2. Get your API key from [OpenAI](https://platform.openai.com/account/api-keys). Make sure you add payment details, so API works.
 
-3. Set the key to opencommit config:
+3. Set the key to OpenCommit config:
 
    ```sh
    opencommit config set OPENAI_API_KEY=<your_api_key>
@@ -38,7 +38,7 @@ All the commits in this repo are done with OpenCommit — look into [the commits
 
 ## Usage
 
-You can call `opencommit` directly to generate a commit message for your staged changes:
+You can call OpenCommit directly to generate a commit message for your staged changes:
 
 ```sh
 git add <files...>
@@ -86,7 +86,7 @@ oc config set description=false
 
 ## Git hook
 
-You can set opencommit as Git [`prepare-commit-msg`](https://git-scm.com/docs/githooks#_prepare_commit_msg) hook. Hook integrates with you IDE Source Control and allows you edit the message before commit.
+You can set OpenCommit as Git [`prepare-commit-msg`](https://git-scm.com/docs/githooks#_prepare_commit_msg) hook. Hook integrates with you IDE Source Control and allows you edit the message before commit.
 
 To set the hook: