Cool icon. Once you've converted the icon you need to remove the <?xml . . .> instruction tag and edit the width and height attributes so it is icon sized. Here's the svg
<svg
width="22px" height="22px" viewBox="0 0 176.000000 176.000000"
preserveAspectRatio="xMidYMid meet">
<metadata>
Created by potrace 1.12, written by Peter Selinger 2001-2015
</metadata>
<g transform="translate(0.000000,176.000000) scale(0.100000,-0.100000)"
fill="#000000" stroke="none">
<path d="M705 1746 c-16 -8 -95 -80 -175 -160 l-145 -146 -148 0 c-172 0 -208
-10 -226 -60 -8 -23 -11 -218 -11 -662 0 -695 -1 -685 60 -707 23 -8 229 -11
702 -11 750 0 728 -2 748 67 6 21 10 85 8 143 l-3 105 -75 0 -75 0 -5 -75 -5
-75 -595 0 -595 0 0 515 0 515 595 0 595 0 5 -155 5 -155 75 0 75 0 3 225 c2
145 -1 239 -8 263 -17 58 -48 67 -227 67 l-148 0 -145 146 c-173 175 -209 194
-285 160z m257 -233 c148 -147 178 -182 176 -203 l-3 -25 -380 0 c-372 0 -380
0 -383 20 -4 29 355 385 388 385 17 0 71 -47 202 -177z"/>
<path d="M244 1026 c-3 -8 -4 -25 -2 -38 l3 -23 315 0 315 0 0 35 0 35 -313 3
c-265 2 -313 0 -318 -12z"/>
<path d="M907 762 l-167 -167 170 -170 c111 -111 173 -166 179 -160 6 6 12 62
13 125 l3 115 315 5 315 5 0 80 0 80 -315 5 -315 5 -5 119 c-3 67 -9 121 -15
123 -6 2 -86 -72 -178 -165z"/>
<path d="M244 786 c-3 -8 -4 -25 -2 -38 3 -23 3 -23 158 -23 l155 0 0 35 0 35
-153 3 c-126 2 -153 0 -158 -12z"/>
<path d="M244 546 c-3 -8 -4 -25 -2 -38 3 -23 3 -23 158 -23 l155 0 0 35 0 35
-153 3 c-126 2 -153 0 -158 -12z"/>
<path d="M244 306 c-3 -8 -4 -25 -2 -38 l3 -23 235 0 235 0 0 35 0 35 -233 3
c-195 2 -233 0 -238 -12z"/>
</g>
</svg>