Update link and fix typo

Author: reytchison

program-analysis/echidna/advanced/smart-contract-fuzzing-at-scale.md

@@ -74,7 +74,7 @@ Once it runs, check the coverage file located in `corpus-exploration/covered.*.t
 
 ## 3. Initiate a continuous fuzzing campaign
 
-When satisfied with the first iteration of the initialization, we can start a "continuous campaign" for exploration and testing using [echidna-parade](https://github.com/agroce/echidna-parade). Before starting, double-check your config file. For instance, if you added properties, do not forget to remove `benchmarkMode`.
+When satisfied with the first iteration of the initialization, we can start a "continuous campaign" for exploration and testing using [echidna-parade](https://github.com/crytic/echidna-parade). Before starting, double-check your config file. For instance, if you added properties, do not forget to remove `benchmarkMode`.
 
 `echidna-parade` is a tool used to launch multiple Echidna instances simultaneously while keeping track of each corpus. Each instance will be configured to run for a specific duration, with different parameters, to maximize the chance of reaching new code.
 

program-analysis/echidna/basic/working-with-eth.md

@@ -116,4 +116,4 @@ echidna_C_has_some_value: failed!💥
 Echidna has two options for using ether during a fuzzing campaign.
 
 - `maxValue` to set the max amount of ether per transaction
-- `contractBalance` to set the initial amount of ether that the testing contract receives in the constructor.
+- `balanceContract` to set the initial amount of ether that the testing contract receives in the constructor.