Add bug report template (#28)

.github/ISSUE_TEMPLATE/Bug_report.md

@@ -0,0 +1,44 @@
+---
+name: 🐛 Bug Report
+about: If something isn't working as expected 🤔.
+---
+
+## Bug Report
+
+#### Current Behavior
+<!-- A clear and concise description of the behavior. -->
+
+#### Expected Behavior
+<!-- A clear and concise description of what you expected to happen. -->
+
+#### Additional context/Screenshots
+<!-- Add any other context about the problem here. If applicable, add screenshots to help explain. -->
+
+#### Environment
+- Starship version: [the output of `starship --version`]
+- Shell type: [fish, zsh]
+- Shell version: [the output of `fish --version` or `zsh --version`]
+- Shell plugin manager: [e.g. oh-my-fish, oh-my-zsh, fisher, antigen]
+- Terminal emulator: [e.g. iTerm, Hyper, Terminator]
+- Operating system: [e.g. OSX 10.13.4, Windows 10]
+
+#### Relevant Shell Configuration
+<!-- 
+  Based on the shell you use, please paste the appropriate configuration.
+    Fish users: ~/.config/fish/config.fish
+    Zsh users: ~/.zshrc
+-->
+
+```bash
+# Your configuration here
+```
+
+#### Starship Configuration
+<!-- Can be found in $XDG_CONFIG_HOME/starship.toml or  ~/.config/starship.toml -->
+
+```bash
+# Your configuration here
+```
+
+#### Possible Solution
+<!--- Only if you have suggestions on a fix for the bug -->