Some syntax escaping errors when converting Markdown to jira

**Describe the bug**
Some syntax escaping errors when converting Markdown to jira

**Please provide following details**
1. JiraCLI Version:
```
github.com/ankitpokhrel/jira-cli v1.3.0
```

**To Reproduce**

Example:

Code:
```
conent := md.ToJiraMD(md)
```
Error:

**Expected behavior**
```
h2. Steps To Reproduce:
* Here's _italic_ inside li
* here's *bold* inside li
* Here's *_bold \+ italic_* inside li
** Here they are in one line indented: _italic_ *bold*
{code}
var hello = 'world';
{code}

```