Fix link for URI Templates as the original link is not available (its content was turned into an official RFC)

[akiraly]

No description provided.

[codecov-io]

Codecov Report

Merging #197 into master will decrease coverage by 0.73%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master     #197      +/-   ##
============================================
- Coverage     67.44%   66.71%   -0.74%     
+ Complexity      980      965      -15     
============================================
  Files            69       69              
  Lines          4086     4086              
  Branches        583      583              
============================================
- Hits           2756     2726      -30     
- Misses          966      991      +25     
- Partials        364      369       +5

Impacted Files	Coverage Δ	Complexity Δ
...a/reactor/ipc/netty/http/server/HttpPredicate.java	73.25% <ø> (ø)	11 <0> (ø)	⬇️
...va/reactor/ipc/netty/channel/AbortedException.java	45.45% <0%> (-9.1%)	5% <0%> (-2%)
...a/reactor/ipc/netty/channel/ChannelOperations.java	75.38% <0%> (-6.16%)	46% <0%> (-3%)
.../ipc/netty/channel/PooledClientContextHandler.java	59.34% <0%> (-5.7%)	24% <0%> (-2%)
src/main/java/reactor/ipc/netty/FutureMono.java	81.63% <0%> (-4.09%)	4% <0%> (-1%)
...java/reactor/ipc/netty/channel/ContextHandler.java	71.56% <0%> (-2.95%)	26% <0%> (-1%)
...or/ipc/netty/http/server/HttpServerOperations.java	64.73% <0%> (-2.32%)	45% <0%> (-2%)
...in/java/reactor/ipc/netty/channel/FluxReceive.java	75.12% <0%> (-1.04%)	56% <0%> (-1%)
...or/ipc/netty/channel/ChannelOperationsHandler.java	58.18% <0%> (-0.78%)	49% <0%> (-2%)

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