diff --git a/README.md b/README.md
index 67f615f..dcfe622 100644
--- a/README.md
+++ b/README.md
@@ -21,3 +21,80 @@ git clone https://github.com/fioncat/roxide.git /path/to/roxide
 cd /path/to/roxide
 make install
 ```
+
+## Config
+
+Please save config file to `$HOME/.config/roxide/config.yml`, or you can use command `roxide config` to create and edit config file directly.
+
+See: [config.yml](config/config.yml).
+
+## Shell Support
+
+Now we support `zsh` and `bash`, it is recommended to use `zsh` for a better experience.
+
+To enable completion and autojump, you need to add roxide init script to your shell profile:
+
+```bash
+source <(roxide init $(basename $SHELL))
+
+# Optional, use `zz` to implement quick jump.
+alias zz="rox home"
+```
+
+Then you can use `cmd` in config file to autojump, default is `rox`.
+
+For example, use the following command to jump to roxide project:
+
+```bash
+rox home github fioncat/roxide
+```
+
+## Usage
+
+You can use `<Tab>` to complete command at any time!
+
+Search global repos and jump:
+
+```bash
+rox home -s
+```
+
+Search repos under a remote and jump:
+
+```bash
+rox home github -s
+```
+
+Search repos under a owner and jump:
+
+```bash
+rox home github fioncat/
+```
+
+Global fuzzy matching and jump:
+
+```bash
+rox home rox # Will jump to repo whose name contains 'rox'
+```
+
+Fuzzy matching under remote and jump:
+
+```bash
+rox home github rox # Will jump to whose name contains 'rox' in github
+```
+
+Search and remove a repo from disk:
+
+```bash
+rox remove github fioncat/
+rox remove github fioncat/roxide
+rox remove rox
+```
+
+Remove all repos under an owner:
+
+```bash
+rox remove -r github fioncat/
+```
+
+For more commands and usages, please see: `rox -h`.
diff --git a/TODOLIST.md b/TODOLIST.md
index 5e159cc..110d561 100644
--- a/TODOLIST.md
+++ b/TODOLIST.md
@@ -2,9 +2,9 @@
 
 ## v0.10.0
 
-- [ ] Use `Cow`, to further reduce memory `clone` overhead.
-- [ ] Add `index` in database, to optimize query speed.
-- [ ] Use insertion sort when updating the repo instead of sorting the entire database every time the bucket is read.
+- [x] Use `Cow`, to further reduce memory `clone` overhead.
+- [x] Change the data structure of the database to HashMap to optimize query, update database version to `v3`.
+- [x] Rebuild `snapshot` command, don't affect workspace.
 
 ## v0.9.0