docs(readme): Add readme

README.md

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+# JSH
+
+Utility for processing json on command line.
+
+# Installation
+
+You need node and npm to use this program.
+
+```
+npm i -g chigur/jsh
+```
+
+# Why?
+
+There are already some projects that solve the problem of command line json
+processing but I just didn't like learning any of them, so I made my own
+command line utility for it. This program doesn't invent fancy json querying
+and manipulating syntax. Querying is done by globs and manipulating is done
+by javascript. Simple and easy.
+
+# How?
+
+```
+curl https://api.github.com/users/chigur/gists | jsh ' **/description { pf($val) } '
+```
+
+Jsh takes pairs of `pattern` and `action` in following format.
+
+```
+<pattern> { <action> // pair 1 }
+<pattern> { <action> // pair 2 }
+```
+
+Patterns are glob patterns, your json is flattened into key value pairs where
+keys resemeble file paths.
+
+Consider following object
+
+```json
+{
+  "name": {
+    "arr": [1],
+    "age": 21
+  }
+}
+```
+
+It becomes
+
+```
+/name/arr/0   1
+/name/age     21
+```
+
+Actions are any valid javascript code snippets, they can use certain aliases
+and variables like `$key` for the path or key, `$val` for value, `pf` and `bn`
+functions as aliases for `console.log` and `require('path').basename` respectively.
+Actions can contain javascript style comments and span across multiple lines.

metadat.json

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+{
+    "elements": [{
+        "name": "t-autosuggest",
+        "category": "form",
+        "icon": "Autosuggest",
+        "displayName": "Auto Suggest",
+        "location": "https://github.com/atomelements/t-autosuggest"
+    }, {
+        "name": "t-button",
+        "category": "form",
+        "icon": "Button",
+        "displayName": "Button",
+        "location": "https://github.com/atomelements/t-button"
+    }, {
+        "name": "t-calendar",
+        "category": "form",
+        "icon": "Calendar",
+        "displayName": "Calendar",
+        "location": "https://github.com/atomelements/t-calendar"
+    }, {
+        "name": "t-checkbox-group",
+        "category": "form",
+        "icon": "Checkbox",
+        "displayName": "Checkbox List",
+        "location": "https://github.com/atomelements/t-checkbox-group"
+    }, {
+        "name": "t-colorpicker",
+        "category": "form",
+        "icon": "Color_Palette",
+        "displayName": "Color Picker",
+        "location": "https://github.com/atomelements/t-colorpicker"
+    }, {
+        "name": "t-dropdown",
+        "category": "form",
+        "icon": "Dropdown",
+        "displayName": "Dropdown",
+        "location": "https://github.com/atomelements/t-dropdown"
+    }, {
+        "name": "t-error-block",
+        "category": "page",
+        "displayName": "Error Block",
+        "location": "https://github.com/atomelements/t-error-block"
+    }, {
+        "name": "t-google-map",
+        "category": "page",
+        "icon": "Map",
+        "displayName": "Google Map",
+        "location": "https://github.com/atomelements/t-google-map"
+    }, {
+        "name": "t-icon-selector",
+        "category": "form",
+        "displayName": "Icon Selector",
+        "location": "https://github.com/atomelements/t-icon-selector"
+    }, {
+        "name": "t-image",
+        "category": "page",
+        "icon": "Image",
+        "displayName": "Image",
+        "location": "https://github.com/atomelements/t-image"
+    }, {
+        "name": "t-input",
+        "category": "form",
+        "icon": "Input_Field",
+        "displayName": "Input Field",
+        "location": "https://github.com/atomelements/t-input"
+    }, {
+        "name": "t-list",
+        "category": "page",
+        "displayName": "list",
+        "location": "https://github.com/atomelements/t-list"
+    }, {
+        "name": "t-loader",
+        "category": "page",
+        "icon": "Loader",
+        "displayName": "Loader",
+        "location": "https://github.com/atomelements/t-loader"
+    }, {
+        "name": "t-notify",
+        "category": "page",
+        "displayName": "Notification",
+        "location": "https://github.com/atomelements/t-notify"
+    }, {
+        "name": "t-progress",
+        "category": "page",
+        "icon": "Progress_bar",
+        "displayName": "Progress Bar",
+        "location": "https://github.com/atomelements/t-progress"
+    }, {
+        "name": "t-radio-group",
+        "category": "form",
+        "icon": "Radio_List",
+        "displayName": "Radio List",
+        "location": "https://github.com/atomelements/t-radio-group"
+    }, {
+        "name": "t-range",
+        "category": "form",
+        "displayName": "Range",
+        "location": "https://github.com/atomelements/t-range"
+    }, {
+        "name": "t-section-header",
+        "category": "form",
+        "icon": "Section_Header",
+        "displayName": "Section Header",
+        "location": "https://github.com/atomelements/t-section-header"
+    }, {
+        "name": "t-slider",
+        "category": "form",
+        "icon": "Slider",
+        "displayName": "Slider",
+        "location": "https://github.com/atomelements/t-slider"
+    }, {
+        "name": "t-stepper",
+        "category": "form",
+        "icon": "Calendar",
+        "displayName": "Stepper",
+        "location": "https://github.com/atomelements/t-stepper"
+    }, {
+        "name": "t-table",
+        "category": "data",
+        "icon": "Table",
+        "displayName": "Table",
+        "location": "https://github.com/atomelements/t-table"
+    }, {
+        "name": "t-tabs",
+        "category": "page",
+        "icon": "Map",
+        "displayName": "Tabs",
+        "location": "https://github.com/atomelements/t-tabs"
+    }, {
+        "name": "t-google-youtube",
+        "category": "page",
+        "icon": "Video",
+        "displayName": "Youtube Video",
+        "location": "https://github.com/atomelements/t-google-youtube"
+    }, {
+        "name": "demo-tester",
+        "displayName": "Demo Tester",
+        "location": "components/demo-tester"
+    }],
+    "categories": [{
+        "name": "data",
+        "displayName": "Data"
+    }, {
+        "name": "form",
+        "displayName": "Form Basic"
+    }, {
+        "name": "form-composite",
+        "displayName": "Form Composite"
+    }, {
+        "name": "page",
+        "displayName": "Page"
+    }]
+}