fixed broken links

contributions.md

@@ -22,13 +22,13 @@ Replace the first row with your own contribution.
 
 | Date #       | Contribution (Link)  | Type  | Description |
 |---|:---|:---|:---|
-| May 9   | (link)[https://www.openstreetmap.org/changeset/151119791#map=19/40.95153/-73.95100]    | OpenStreet Map feature    |   Added Arboretum to map    |
-| May 9   | (link)[https://www.openstreetmap.org/changeset/151119820]    | OpenStreet Map feature    |   Added Bench locations to Arboretum    |
-| May 9   | (link)[https://www.openstreetmap.org/changeset/151119946#map=19/40.95317/-73.94996]    | OpenStreet Map feature    |   Added house ruins to the map    |
-| May 9   | (link)[https://www.openstreetmap.org/changeset/151120111#map=17/40.95963/-73.95435]    | OpenStreet Map feature    |   Added old, 18th century cemetary to the map of the town which I grew up in along with a brief description of its significance|
-| May 9   | (link)[https://www.openstreetmap.org/changeset/151120170#map=19/40.95736/-73.96394]    | OpenStreet Map feature    |   Added location of the wine store to Demarest, NJ   |
-| May 9   | (link)[https://www.openstreetmap.org/changeset/151120294#map=19/40.95618/-73.96297]    | OpenStreet Map feature    |   Added location of the 9/11 memorial to Demarest, NJ   |
-| May 9   | (link)[https://www.openstreetmap.org/changeset/151120386#map=17/40.95445/-73.96371]    | OpenStreet Map feature    |   Added location of fire station to Demarest, NJ  |
-| May 9   | (link)[https://www.openstreetmap.org/changeset/151120416]    | OpenStreet Map feature    |   Added location of the town swimming club to Demarest, NJ  |
+| May 9   | [link](https://www.openstreetmap.org/changeset/151119791#map=19/40.95153/-73.95100)    | OpenStreet Map feature    |   Added Arboretum to map    |
+| May 9   | [link](https://www.openstreetmap.org/changeset/151119820)    | OpenStreet Map feature    |   Added Bench locations to Arboretum    |
+| May 9   | [link](https://www.openstreetmap.org/changeset/151119946#map=19/40.95317/-73.94996)    | OpenStreet Map feature    |   Added house ruins to the map    |
+| May 9   | [link](https://www.openstreetmap.org/changeset/151120111#map=17/40.95963/-73.95435)    | OpenStreet Map feature    |   Added old, 18th century cemetary to the map of the town which I grew up in along with a brief description of its significance|
+| May 9   | [link](https://www.openstreetmap.org/changeset/151120170#map=19/40.95736/-73.96394)    | OpenStreet Map feature    |   Added location of the wine store to Demarest, NJ   |
+| May 9   | [link](https://www.openstreetmap.org/changeset/151120294#map=19/40.95618/-73.96297)    | OpenStreet Map feature    |   Added location of the 9/11 memorial to Demarest, NJ   |
+| May 9   | [link](https://www.openstreetmap.org/changeset/151120386#map=17/40.95445/-73.96371)    | OpenStreet Map feature    |   Added location of fire station to Demarest, NJ  |
+| May 9   | [link](https://www.openstreetmap.org/changeset/151120416)    | OpenStreet Map feature    |   Added location of the town swimming club to Demarest, NJ  |
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