Update release template
Reformat the Maven section so that the Maven coordinates consisting
of the Group ID, Artifact ID, and Version are grouped together.
The following artifacts are available in the Central Repository:
-Name | Artifact ID | Version
--------------------------|-------------------------|--------
-Philadelphia Core | `philadelphia-core` | `...`
-Philadelphia FIX 4.2 | `philadelphia-fix42` | `...`
-Philadelphia FIX 4.3 | `philadelphia-fix43` | `...`
-Philadelphia FIX 4.4 | `philadelphia-fix44` | `...`
-Philadelphia FIX 5.0 | `philadelphia-fix50` | `...`
-Philadelphia FIX 5.0 SP1 | `philadelphia-fix50sp1` | `...`
-Philadelphia FIX 5.0 SP2 | `philadelphia-fix50s2p` | `...`
-Philadelphia FIXT 1.1 | `philadelphia-fixt11` | `...`
-
-The **Group ID** for all artifacts is `com.paritytrading.philadelphia`.
+Group ID | Artifact ID | Version
+---------------------------------|-------------------------|--------
+`com.paritytrading.philadelphia` | `philadelphia-core` | `...`
+`com.paritytrading.philadelphia` | `philadelphia-fix42` | `...`
+`com.paritytrading.philadelphia` | `philadelphia-fix43` | `...`
+`com.paritytrading.philadelphia` | `philadelphia-fix44` | `...`
+`com.paritytrading.philadelphia` | `philadelphia-fix50` | `...`
+`com.paritytrading.philadelphia` | `philadelphia-fix50sp1` | `...`
+`com.paritytrading.philadelphia` | `philadelphia-fix50s2p` | `...`
+`com.paritytrading.philadelphia` | `philadelphia-fixt11` | `...`
