Make anchor for examples

nope, not this time ;)

```js
    /**
     * Finds the first block inside the current block or its elements (including context)
     * @param {String|jQuery} [elem] Block element
     * @param {String|Object} block Name or description (block,modName,modVal) of the block to find
     * @returns {BEMDOM}
     */
    findBlockInside : function(elem, block) {
        return this._findBlocks('find', elem, block, true);
    }
```

that doesn't mean you may use `tabs__header`, it means that you may select an element of the **current** block to search for blocks. E.g. `this.findBlockInside('bla', 'ololo');` will seach for `ololo` block just inside `my-block__bla` DOM node. But for block itself you may use a string with block name or an object with `{ block: '', modName: '', modVal: '' }`.

The rule is simple: if the name of the method is find**Block**Inside() — it should look for blocks, not elements ;)