remove prefix `v` from the version number (#134)

remove prefix v from the version number (#134)

diff --git a/.discourse-compatibility b/.discourse-compatibility
index be05335..0bcd571 100644
--- a/.discourse-compatibility
+++ b/.discourse-compatibility
@@ -1,4 +1,4 @@
+2.8.0.beta3: 23287ece952cb45203819e7b470ebc194c58cb13
 2.7.7: 23287ece952cb45203819e7b470ebc194c58cb13
-v2.8.0.beta3: 23287ece952cb45203819e7b470ebc194c58cb13
 2.7.0.beta3: 60ffd4bc4d357b365cdb8a6764cec621f2edcf81
 2.6.0.beta2: 16873e708a3c924549e77f3fea011069358d1511

GitHub sha: 0becde3281433e261b0f6cfa1c2cdbd697021c34

This commit appears in #134 which was approved by jjaffeux. It was merged by vinothkannans.