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Update TLV8.md

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@ -37,7 +37,7 @@ The method for adding a generic TLV8 record to a TLV8 object is as follows:
* where *tag* is the TAG identifier for the record to add and *val* is a pointer to a byte-array containing *len* elements
* example: `TLV8 myTLV; uint8_t v[]={0x01, 0x05, 0xE3, 0x4C}; tlv.add(1, sizeof(v), v);
* setting *val* to NULL reserves *len* bytes of space for the TLV8 record within the TLV8 object, but does not copy any data
* this method returns an *iterator* to the resulting TLV8 record so you can reference the record at a later time if needed
* this method returns a TLV8 *iterator* to the resulting TLV8 record so you can reference the record at a later time if needed
In addition to the above generic method suitable for any type of data, the following methods make it easier to add TLV8 records with specific, frequently-used types of data:
@ -62,7 +62,17 @@ The method for finding a TLV8 record within a TLV8 object that contains a specif
* `TLV8_it find(uint8_t tag)`
* where *tag* is the TAG identifier you are seeking
*
* returns a TLV8 iterator to *first* record that matches; returns *end()* if no records match
To restrict the search range to a limited set of records, add optional starting and ending iterators *it1* and *it2*:
* `TLV8_it find(uint8_t tag [, TLV8_it it1 [, TLV8_it it2]])`
* returns a TLV8 iterator to the *first* record within the range of iterators from *it1* to *it2* that matches the specified *tag*
* search range is inclusive of *it1* but exclusive of *it2*
* returns *it2* if no records match
* if *it2* is unspecified, default is *end()*; if *it1* is unspecified, default is *begin()*
* note `myTLV.find(tag)` is equivalent to `myTLV.find(tag, myTLV.begin(), myTLV.end())`