Merge pull request #97 from amardeshbd/minor-readme

[UPDATE] Naming conventions

Author: hossain-khan

app/src/main/res/layout/.README.md

@@ -24,14 +24,14 @@ Each layout must also be named based on sub features. Use following convention t
   * Prefix: **`_TBD_`** | `MATCH_CONSTRAINT` dimensions _(Added in 1.1)_
   * Prefix: **`_TBD_`** | `WRAP_CONTENT` : enforcing constraints _(Added in 1.1)_
   * Prefix: **`_TBD_`** | Widgets dimension constraints
-- Prefix: **`_TBD_`** | Chains
+- Prefix: **`_chain_`** | Chains
   * Prefix: **`_TBD_`** | Chain Style
-  * Prefix: **`_TBD_`** | Weighted chains
-  * Prefix: **`_TBD_`** | Margins and chains _(Added in 1.1)_
+  * Prefix: **`_weighted_`** | Weighted chains
+  * Prefix: **`_margin_`** | Margins and chains _(Added in 1.1)_
 - Prefix: **`_virtual_helper_`** | Virtual Helpers objects
   * Prefix: **`_guideline_`** | Guideline
   * Prefix: **`_barrier_`** | Barrier
   * Prefix: **`_group_`** | Group
 - Prefix: **`_TBD_`** | Optimizer _(Added in 1.1)_
 
-> NOTE: The list of feature set is taken from original [readme](https://github.com/amardeshbd/android-constraint-layout-cheatsheet/blob/master/README.md).
+> NOTE: The list of feature set is taken from original [readme](https://github.com/amardeshbd/android-constraint-layout-cheatsheet/blob/master/README.md).