convert glove to word2vec code example

Example: glove2word2vec

>>> from gensim.test.utils import datapath, get_tmpfile
>>> from gensim.models import KeyedVectors
>>> from gensim.scripts.glove2word2vec import glove2word2vec
>>>
>>> glove_file = datapath('test_glove.txt')
>>> tmp_file = get_tmpfile("test_word2vec.txt")
>>>
>>> _ = glove2word2vec(glove_file, tmp_file)
>>>
>>> model = KeyedVectors.load_word2vec_format(tmp_file)