i.atcorr manual: minor typo

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@72399 15284696-431f-4ddb-bdfa-cd5b030d7da7

imagery/i.atcorr/i.atcorr.html

@@ -579,7 +579,7 @@ but step by step output will be printed.</td>
 
 <tr><td>61</td><td><b>etm+ (landsat7)</b> band 1 blue (435nm - 517nm)</td></tr>
 <tr><td>62</td><td>etm+ (landsat7) band 2 green (508nm - 617nm)</td></tr>
-<tr><td>63</td><td>etm+ (landsat7) band 3 (625nm - 702nm)</td></tr>
+<tr><td>63</td><td>etm+ (landsat7) band 3 red (625nm - 702nm)</td></tr>
 <tr><td>64</td><td>etm+ (landsat7) band 4 NIR (753nm - 910nm)</td></tr>
 <tr><td>65</td><td>etm+ (landsat7) band 5 SWIR (1520nm - 1785nm)</td></tr>
 <tr><td>66</td><td>etm+ (landsat7) band 7 SWIR (2028nm - 2375nm)</td></tr>