Fix broken links (#1538)

There are still several broken links in old release notes, but I'm not
not going to worry about those right now...

- /news/0.7-relnotes/
- /news/0.10-relnotes/
- /news/0.11-relnotes/
- /news/0.12-relnotes/
- /news/0.13-relnotes/

data/homepagetweets.toml

@@ -12,20 +12,6 @@ quote = "Can't overstate how much I enjoy <a href='https://twitter.com/gohugoio'
 link = "https://twitter.com/jscarto/status/1039648827815485440"
 date = 2018-09-12T00:00:00Z
 
-[[tweet]]
-name = "Jens Munch"
-twitter_handle = "@jensamunch"
-quote = "Hugo is really, really incredible... Now does resizing/resampling of images as well! Crazy that something so fast can be a static site generator... Amazing open-source project."
-link = "https://twitter.com/jensamunch/status/948533063537086464"
-date = 2018-01-03T04:00:00Z
-
-[[tweet]]
-name = "STOQE"
-twitter_handle = "@STOQE"
-quote = "I fear <a href='https://twitter.com/gohugoio' target='_blank'>@GoHugoIO</a> v0.22 might be so fast it creates a code vortex that time-warps me back to a time I used Wordpress. <a href='https://twitter.com/hashtag/gasp?src=hash'>#gasp</a>"
-link = "https://twitter.com/STOQE/status/874184881701494784"
-date = 2017-06-12T00:00:00Z
-
 [[tweet]]
 name = "Christophe Diericx"
 twitter_handle = "@spcrngr_"